Professor Zsolt Podolyak

Research Interests

Nuclear physics:

  • Nuclear structure; structure of heavy neutron-rich nuclei 
  • Nuclear reactions (fragmentation)
  • Radioactive beam facilities (FAIR/NuSTAR; RIKEN; CERN/ISOLDE)

Teaching

2nd year Laboratory

3rd year UG: Nuclear Astrophysics

MSc (REP, MP, RDI, MI): Radiation Physics 

MSc (REP, RDI, MP): Radiation Physics Laboratory

Module Leader for PHY3041 Nuclear Astrophysics; PHYM021 Research Project and Dissertation; PHYM032 Radiation Physics; PHYM036 Radiation Laboratory Skills

Departmental Duties

Programme Leader MSc Radiation and Environmental Protection

Programme Leader MSc Nuclear Science and Applications

Contact Me

E-mail:
Phone: 01483 68 6811

Find me on campus
Room: 05 BB 03

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Publications

Highlights

  • Podolyak Z, Shand CM, Lalovic, N, Gerl J, Rudolph D, Alexander T, Boutachkov P, Cortes ML, Gorska M, Kojouharov I, Kurz N, Louchart C, Merchan E, Michelagnoli C, Perez-Vidal RM, Pietri S, Ralet D, Reese M, Schaffner H, Stahl C, Weick H, Ameil F, de Angelis G, Arici T, Carroll R, Dombradi Z, Gadea A, Golubev P, Lettmann M, Lizarazo C, Birkenbach B, Bruyneel B, Burrows I, Charles L, Clement E, Crespi FCL, Cullen DM, Desesquelles P, Eberth J, Gonzalez V, Habermann T, Harkness-Brennan L, Hess H, Judson DS, Jungclaus A, Korten W, Labiche M, Maj A, Mengoni D, Napoli DR, Pullia A, Quintana B, Rainovski G, Reiter P, Salsac MD, Sanchis E, Valiente Dobon JJ. (2016) 'Role of the Δ Resonance in the Population of a Four-Nucleon State in the Fe56→Fe54 Reaction at Relativistic Energies'. American Physical Society Physical Review Letters, 117 (22) Article number 222302

    Abstract

    The Fe54 nucleus was populated from a Fe56 beam impinging on a Be target with an energy of E/A=500  MeV. The internal decay via γ-ray emission of the 10+ metastable state was observed. As the structure of this isomeric state has to involve at least four unpaired nucleons, it cannot be populated in a simple two-neutron removal reaction from the Fe56 ground state. The isomeric state was produced in the low-momentum (-energy) tail of the parallel momentum (energy) distribution of Fe54, suggesting that it was populated via the decay of the Δ0 resonance into a proton. This process allows the population of four-nucleon states, such as the observed isomer. Therefore, it is concluded that the observation of this 10+ metastable state in Fe54 is a consequence of the quark structure of the nucleons.

  • Wilson E, Podolyák Z, Grawe H, Brown BA, Chiara CJ, Zhu S, Fornal B, Janssens RVF, Shand CM, Bowry M, Bunce M, Carpenter MP, Cieplicka-Oryńczak N, Deo AY, Dracoulis GD, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Lotay G, Reed MW, Regan PH, Rodríguez Triguero C, Seweryniak D, Szpak B, Walker PM. (2015) 'Core excitations across the neutron shell gap in <sup>207</sup>Tl'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 747, pp. 88-92.

    Abstract

    © 2015 The Authors.The single closed-neutron-shell, one proton-hole nucleus 207Tl was populated in deep-inelastic collisions of a 208Pb beam with a 208Pb target. The yrast and near-yrast level scheme has been established up to high excitation energy, comprising an octupole phonon state and a large number of core excited states. Based on shell-model calculations, all observed single core excitations were established to arise from the breaking of the N=126 neutron core. While the shell-model calculations correctly predict the ordering of these states, their energies are compressed at high spins. It is concluded that this compression is an intrinsic feature of shell-model calculations using two-body matrix elements developed for the description of two-body states, and that multiple core excitations need to be considered in order to accurately calculate the energy spacings of the predominantly three-quasiparticle states.

  • Patel Z, Söderström PA, Podolyák Z, Regan PH, Walker PM, Watanabe H, Ideguchi E, Simpson GS, Liu HL, Nishimura S, Wu Q, Xu FR, Browne F, Doornenbal P, Lorusso G, Rice S, Sinclair L, Sumikama T, Wu J, Xu ZY, Aoi N, Baba H, Bello Garrote FL, Benzoni G, Daido R, Fang Y, Fukuda N, Gey G, Go S, Gottardo A, Inabe N, Isobe T, Kameda D, Kobayashi K, Kobayashi M, Komatsubara T, Kojouharov I, Kubo T, Kurz N, Kuti I, Li Z, Matsushita M, Michimasa S, Moon CB, Nishibata H, Nishizuka I, Odahara A, Şahin E, Sakurai H, Schaffner H, Suzuki H, Takeda H, Tanaka M, Taprogge J, Vajta Z, Yagi A, Yokoyama R. (2014) 'Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100'. Physical Review Letters, 113 (26)

    Abstract

    © 2014 American Physical Society.Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.

  • Nishimura S, Li Z, Watanabe H, Yoshinaga K, Sumikama T, Tachibana T, Yamaguchi K, Kurata-Nishimura M, Lorusso G, Miyashita Y, Odahara A, Baba H, Berryman JS, Blasi N, Bracco A, Camera F, Chiba J, Doornenbal P, Go S, Hashimoto T, Hayakawa S, Hinke C, Ideguchi E, Isobe T, Ito Y, Jenkins DG, Kawada Y, Kobayashi N, Kondo Y, Krücken R, Kubono S, Nakano T, Ong HJ, Ota S, Podolyák Z, Sakurai H, Scheit H, Steiger K, Steppenbeck D, Sugimoto K, Takano S, Takashima A, Tajiri K, Teranishi T, Wakabayashi Y, Walker PM, Wieland O, Yamaguchi H. (2011) 'β-Decay half-lives of very neutron-rich Kr to Tc isotopes on the boundary of the r-process path: An indication of fast r-matter flow'. American Physical Society Physical Review Letters, 106 (5) Article number 052502 , pp. ---.

    Abstract

    The β-decay half-lives of 38 neutron-rich isotopes from 36Kr to 43Tc have been measured; the half-lives of 100Kr, 103–105Sr, 106–108Y, 108–110Zr, 111,112Nb, 112–115Mo, and 116,117Tc are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A≈110 region. A revised model based on the second generation gross theory of β decay better predicts the measured half-lives and suggests a more rapid flow of the rapid neutron-capture process (r-matter flow) through this region than previously predicted.

  • Steer SJ, Podolyak Z, Pietri S, Gorska M, Grawe H, Maier KH, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R. (2011) 'Isomeric states observed in heavy neutron-rich nuclei populated in the fragmentation of a (208)Pb beam'. American Physical Society PHYSICAL REVIEW C, 84 (4) Article number ARTN 044313
  • Farnea E, Recchia F, Bazzacco D, Kroell T, Podolyak Z, Quintana B, Gadea A. (2010) 'Conceptual design and Monte Carlo simulations of the AGATA array'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 621 (1-3), pp. 331-343.
  • Al-Dahan N, Podolyak Z, Regan PH, Gorska M, Grawe H, Maier KH, Gerl J, Pietri SB, Wollersheim HJ, Alkhomashi N, Deo AY, Bacelar AMD, Farrelly G, Steer SJ, Bruce AM, Boutachkov P, Domingo-Pardo C, Algora A, Benlliure J, Bracco A, Calore E, Casarejos E, Cullen IJ, Detistov P, Dombradi Z, Doncel M, Farinon F, Gelletly W, Geissel H, Goel N, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Lalkovski S, Leoni S, Molina F, Montanari D, Morales AI, Musumarra A, Napoli DR, Nicolini R, Nociforo C, Prochazka A, Prokopowicz W, Rubio B, Rudolph D, Schaffner H, Strmen P, Szarka I, Swan T, Thomas JS, Valiente-Dobon JJ, Verma S, Walker PM, Weick H. (2009) 'Nuclear structure "southeast" of Pb-208: Isomeric states in Hg-208 and Tl-209'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 80 (6) Article number ARTN 061302
  • Chen L, Litvinov YA, Plass WR, Beckert K, Beller P, Bosch F, Boutin D, Caceres L, Cakirli RB, Carroll JJ, Casten RF, Chakrawarthy RS, Cullen DM, Cullen IJ, Franzke B, Geissel H, Gerl J, Gorska M, Jones GA, Kishada A, Knoebel R, Kozhuharov C, Litvinov SA, Liu Z, Mandal S, Montes F, Muenzenberg G, Nolden F, Ohtsubo T, Patyk Z, Podolyak Z, Propri R, Rigby S, Saito N, Saito T, Scheidenberger C, Shindo M, Steck M, Ugorowski P, Walker PM, Williams S, Weick H, Winkler M, Wollersheim H-J, Yamaguchi T. (2009) 'Schottky Mass Measurement of the Hg-208 Isotope: Implication for the Proton-Neutron Interaction Strength around Doubly Magic Pb-208'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 102 (12) Article number ARTN 122503
  • Podolyak Z, Farrelly GF, Regan PH, Garnsworthy AB, Steer SJ, Gorska M, Benlliure J, Casarejos E, Pietri S, Gerl J, Wollersheim HJ, Kumar R, Molina F, Algora A, Alkhomashi N, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Caceres L, Cullen IJ, Bacelar AMD, Doornenbal P, Estevez ME, Fujita Y, Gelletly W, Geissel H, Grawe H, Grebosz J, Hoischen R, Kojouharov I, Lalkovski S, Liu Z, Maier KH, Mihai C, Muecher D, Rubio B, Schaffner H, Tamii A, Tashenov S, Valiente-Dobon JJ, Walker PM, Woods PJ. (2009) 'Proton-hole excitation in the closed shell nucleus Au-205'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 672 (2), pp. 116-119.
  • Jungclaus A, Caceres L, Gorska M, Pfutzner M, Pietri S, Werner-Malento E, Grawe H, Langanke K, Martinez-Pinedo G, Nowacki F, Poves A, Cuenca-Garcia JJ, Rudolph D, Podolyak Z, Regan PH, Detistov P, Lalkovski S, Modamio V, Walker J, Bednarczyk P, Doornenbal P, Geissel H, Gerl J, Grebosz J, Kojouharov I, Kurz N, Prokopowicz W, Schaffner H, Wollersheim HJ, Andgren K, Benlliure J, Benzoni G, Bruce AM, Casarejos E, Cederwall B, Crespi FCL, Hadinia B, Hellstrom M, Hoischen R, Ilie G, Jolie J, Khaplanov A, Kmiecik M, Kumar R, Maj A, Mandal S, Montes F, Myalski S, Simpson GS, Steer SJ, Tashenov S, Wieland O. (2007) 'Observation of isomeric decays in the r-process waiting-point nucleus Cd-130(82)'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 99 (13) Article number ARTN 132501

Journal articles

  • Lalovic N, Rudolph D, Podolyak Z, Sarmiento L, Simpson E, Alexander T, Cortes Sua M, Gerl J, Golubev P, Ameil F, Arici T, Bauer C, Bazzacco D, Bentley M, Boutachkov P, Bowry M, Fahlander C, Gadea A, Gellanki J, Givechev A, Goel N, Gorska M, Gottardo A, Gregor E, Guastalla G, Habermann T, Hackstein M, Jungclaus A, Kojouharov I, Kumar R, Kurz N, Lettmann M, Lizarazo C, Louchart-Henning C, Merchan E, Michelagnoli C, Moeller T, Moschner K, Patel Z, Pietralla N, Pietri S, Ralet D, Reese M, Regan P, Reiter P, Schaffner H, Singh P, Stahl C, Stegmann R, Stézowski O, Taprogge J, Thoele P, Wendt A, Wieland O, Wilson E, Wood R, Wollersheim H, Birkenbach B, Bruyneel B, Burrows I, Clement E, Desesquelles P, Domingo-Pardo C, Eberth J, Gonzales Millan V, Hess H, Jolie J, Judson D, Menegazzo R, Mengoni D, Napoli D, Pullia A, Quintana Arnes B, Rainovski G, Salsac M, Sanchis E, Simpson J, Valiente Dobón J. (2018) 'Study of Isomeric States in 198,200,202,206Pb and 206Hg Populated in Fragmentation Reactions'. IOP Publishing Journal of Physics G: Nuclear and Particle Physics,

    Abstract

    Isomeric states in isotopes in the vicinity of doubly-magic 208Pb were populated following reactions of a relativistic 208Pb primary beam impinging on a 9Be fragmentation target. Secondary beams of 198;200;202;206Pb and 206Hg were isotopically separated and implanted in a passive stopper positioned in the focal plane of the GSI Fragment Separator. Delayed γ rays were detected with the Advanced GAmma Tracking Array (AGATA). Decay schemes were re-evaluated and interpreted with shell-model calculations. The momentum-dependent population of isomeric states in the two-nucleon hole nuclei 206Pb/206Hg was found to differ from the population of multi neutron-hole isomeric states in 198;200;202Pb.

  • Lalkovski S, Stefanova E, Kisyov S, Korichi A, Bazzacco D, Bergstrom M, Gorgen A, Herskind B, Hubel H, Jansen A, Khoo T, Kutsarova T, Lopez-Martens A, Minkova A, Podolyak Z, Schonwasser G, Yordanov O. (2017) 'Structure of the neutron mid-shell nuclei 111,11347Ag64,66'. American Physical Society Physical Review C, 96

    Abstract

    111Ag and 113Ag were produced in induced fission reaction, where yrast and near-yrast states were populated. To interpret the new data the Interacting Boson-Fermion model was used. A good agreement with the experimental data is achieved, suggesting that the two Ag nuclei have a well developed collectivity, superimposed on \pi g9/2-3 excitations previously observed throughout the entire isotopic chain.

  • Shand CM, Podolyak Z, Górska M, Doornenbal P, Obertelli A, Nowacki F, Otsuka T, Sieja K, Tostevin JA, Tsunoda Y, Authelet G, Baba H, Calvet D, Château A, Chen S, Corsi A, Delbart A, Gheller J, Giganon A, Gillibert A, Isobe T, Lapoux V, Matsushita M, Momiyama S, Motobayashi T, Niikura M, Otsu H, Paul N, Péron C, Peyaud A, Pollacco E, Roussé J, Sakurai H, Santamaria C, Sasano M, Shiga Y, Steppenbeck D, Takeuchi S, Taniuchi R, Uesaka T, Wang H, Yoneda K, Ando T, Arici T, Blazhev A, Browne F, Bruce A, Carroll R, Chung L, Cortés M, Dewald M, Ding B, Dombrádi Z, Flavigny F, Franchoo S, Giacoppo F, Gottardo A, Hadyńska-Klęk K, Jungclaus A, Korkulu Z, Koyama S, Kubota Y, Lee J, Lettmann M, Linh B, Liu J, Liu Z, Lizarazo C, Louchart C, Lozeva R, Matsui K, Miyazaki T, Moschner K, Nagamine M, Nakatsuka N, Nishimura S, Nita C, Nobs C, Olivier L, Ota S, Orlandi R, Patel Z, Regan P, Rudigier M, Şahin E, Saito T, Söderström P, Stefan I, Sumikama T, Suzuki D, Vajta Z, Vaquero V, Werner V, Wimmer K, Wu J, Xu Z. (2017) 'Shell evolution beyond Z = 28 and N = 50: Spectroscopy of 81,82,83,84 Zn'. Elsevier Physics Letters B, 773, pp. 492-497.

    Abstract

    We report on the measurement of new low-lying states in the neutron-rich 81,82,83,84Zn nuclei via in-beam γ -ray spectroscopy. These include the View the MathML source41+→21+ transition in 82Zn, the View the MathML source21+→0g.s.+ and View the MathML source41+→21+ transitions in 84Zn, and low-lying states in 81,83Zn were observed for the first time. The reduced View the MathML sourceE(21+) energies and increased View the MathML sourceE(41+)/E(2+1) ratios at N=52N=52, 54 compared to those in 80Zn attest that the magicity is confined to the neutron number N=50N=50 only. The deduced level schemes are compared to three state-of-the-art shell model calculations and a good agreement is observed with all three calculations. The newly observed 2+2+ and 4+4+ levels in 84Zn suggest the onset of deformation towards heavier Zn isotopes, which has been incorporated by taking into account the upper sdg orbitals in the Ni78-II and the PFSDG-U models.

  • Patel Z, Walker P, Podolyak Z, Regan P, Berry T, Söderström P, Watanabe H, Ideguchi E, Simpson G, Nishimura S, Wu Q, Xu F, Browne F, Doornenbal P, Lorusso G, Rice S, Sinclair L, Sumikama T, Wu J, Xu Z, Aoi N, Baba H, Bello Garrote F, Benzoni G, Daido R, Dombrádi Z, Fang Y, Fukuda N, Gey G, Go S, Gottardo A, Inabe N, Isobe T, Kameda D, Kobayashi K, Kobayashi M, Komatsubara T, Kojouharov I, Kubo T, Kurz N, Kuti I, Li Z, Matsushita M, Michimasa S, Moon C, Nishibata H, Nishizuka I, Odahara A, Sahin E, Sakurai H, Schaffner H, Suzuki H, Takeda H, Tanaka M, Taprogge J, Vajta Z, Yagi A, Yokoyama R. (2017) 'Isomer-delayed -ray spectroscopy of A = 159 - 164 midshell nuclei and the variation of K-forbidden E1 transition hindrance factors'. American Physical Society Physical Review C, 96 (3) Article number 034305

    Abstract

    Excited states have been studied in \iso{159}{Sm}, \iso{161}{Sm}, \iso{162}{Sm} (Z~=~62), \iso{163}{Eu} (Z~=~63), and \iso{164}{Gd} (Z~=~64), populated by isomeric decay following 238U projectile fission at RIBF, RIKEN. The isomer half-lives range from 50 ns to 2.6 \mus. In comparison with other published data, revised interpretations are proposed for \iso{159}{Sm} and \iso{163}{Eu}. The first data for excited states in \iso{161}{Sm} are presented, where a 2.6 \mus isomer is assigned a three-quasiparticle, K^\pi = 17/2^- structure. The interpretation is supported by multi-quasiparticle Nilsson-BCS calculations, including the blocking of pairing correlations. A consistent set of reduced E1 hindrance factors is obtained. Limited evidence is also reported for isomeric decay in 163Sm, 164Eu and 165Eu.

  • Vogt A, Siciliano M, Birkenbach B, Reiter P, Hadyńska-Klęk K, Wheldon C, Valiente-Dobón J, Teruya E, Yoshinaga N, Arnswald K, Bazzacco D, Blazhev A, Bracco A, Bruyneel B, Chakrawarthy R, Chapman R, Cline D, Corradi L, Crespi F, Cromaz M, de Angelis G, Eberth J, Fallon P, Farnea E, Fioretto E, Hess H, Hetzenegger R, Hirsch R, Hua H, John P, Jolie J, Jungclaus A, Karayonchev V, Kaya L, Korten W, Lee I, Leoni S, Liang X, Lunardi S, Macchiavelli A, Menegazzo R, Mengoni D, Michelagnoli C, Mijatovic T, Montagnoli G, Montanari D, Müller-Gatermann C, Napoli D, Pearson C, Podolyak Z, Pollarolo G, Pullia A, Queiser M, Recchia F, Regan P, Régis J, Saed-Samii N, Sahin E, Scarlassara F, Seidlitz M, Siebeck B, Sletten G, Smith J, Söderström P, Stefanini A, Stezowski O, Szilner S, Szpak B, Teng R, Ur C, Warner D, Wolf K, Wu C, Zell K. (2017) 'High-spin structures in ¹³²\mathrmXe and ¹³³\mathrmXe and evidence for isomers along the ℕ=79 isotones'. American Physical Society Physical Review C - Nuclear Physics, 96 (2), pp. 024321-1-024321-14.

    Abstract

    The 50 � N,Z � 82 region of the Segrè chart, spanning the nuclei “northwest” of doubly-magic 132Sn, is an intriguing study ground to test the suitability and predictive power of nuclear models at both low and high spins. Low-spin excited states in the nearly spherical nuclei near proton- and neutronshell closures are well described as anharmonic vibrations [1] with a gradual change to rotational structures further away from the closed shells. Further on, quasiparticle excitations play a key role and are responsible for the presence of yrast-trap isomers. These long-lived states interrupt and fragment the decay flux in spectroscopic investigations. High-j couplings involving the unique-parity h11/2 neutron-hole orbital give rise to a wealth of high-spin states with multi-quasiparticle character. In particular, detailed knowledge of isomers is crucial to ascertain the active quasiparticle configurations in the specific nucleus.

  • Browne F, Bruce A, Sumikama T, Nishizuka I, Nishimura S, Doornenbal P, Lorusso G, Soderstrom P, Watanabe H, Daido R, Patel Z, Rice S, Sinclair L, Wu J, Xu Z, Yagi A, Baba H, Chiga N, Carroll R, Didierjean F, Fang Y, Fukuda N, Gey G, Ideguchi E, Inabe N, Isobe T, Kameda D, Kojouharov I, Kurz N, Kubo T, Lalkovski S, Li Z, Lozeva R, Nishibata N, Odahara A, Podolyak Z, Regan PH, Roberts O, Sakurai H, Schaffner H, Simpson G, Suzuki H, Takeda H, Tanaka M, Taprogge J, Werner V, Wieland O. (2017) 'K-selection in the decay of the (ν 5 2 [532] ⊗ 3 2 [411])4- isomeric state in 102Zr'. American Physical Society Physical Review C, 96 (2) Article number 024309

    Abstract

    The (ν 5 2 [532] ⊗ 3 2 [411]) 4− state in 102Zr, populated in the β-decay of 102Y, has been measured to be isomeric with a mean lifetime of 9.5(7) ns. It decays via four transitions, two of which are ∆K = 2 (to the 3+ and 4+ members of the 2+ γ band) and one is ∆K = 4 (to the 4+ member of the ground state 0+ band). The fourth (low-energy) transition is inferred to decay to an as-yet unassigned state. Hindrances of 106 were derived for the ∆K = 2 transitions compared to Weisskopf estimates and the ∆K = 4 transition hindered by a factor of 109 . These values are consistent with the decay pattern of the analogous isomeric state in the neighbouring N = 62 nucleus 100Sr and with the broader systematics of such transitions. A comparison of the hindrances for the ∆K = 4 transitions suggests that 102Zr is hardened against the γ degree of freedom compared to 100Sr.

  • Chen S, Doornenbal P, Obertelli A, Rodrıguez T, Authelet G, Baba H, Calvet D, Chateau F, Corsi A, Delbart A, Gheller J, Giganon A, Gillibert A, Lapoux V, Motobayashi T, Niikura M, Paul N, Rousse J, Sakurai H, Santamaria C, Steppenbeck D, Taniuchi R, Uesaka T, Ando T, Arici T, Blazhev A, Browne F, Bruce A, Caroll R, Chung L, Cortes M, Dewald M, Ding B, Flavigny F, Franchoo S, Gorska M, Gottardo A, Jungclaus A, Lee J, Lettmann M, Linh B, Liu J, Liu Z, Lizarazo C, Momiyama S, Moschner K, Nagamine S, Nakatsuka N, Nita C, Nobs C, Olivier L, Orlandi R, Patel Z, Podolyak Z, Rudigier M, Saito T, Shand CM, Soderstrom P, Stefan I, Vaquero V, Werner V, Wimmer K, Xu Z. (2017) 'First Indication for Shape Transitions in Neutron-rich Selenium Isotopes'. American Physical Society Physical Review C: Nuclear Physics,
    [ Status: Accepted ]

    Abstract

    Neutron-rich 88,90,92,94Se isotopes were studied via in-beam γ-ray spectroscopy after production from nucleon removal at intermediate energies at the Radioactive Isotope Beam Factory. γ-γ coincidence analysis allowed to establish level schemes for the first time in these nuclei, including the 2+ 1 → 0 + gs, 4+ 1 → 2 + 1 transitions and their energy ratio R4/2. Low-lying 2+ 2 levels and their branching to the 2+ 1 and 0+ gs states were observed. The experimental results are in good agreement with self-consistent beyond-mean-field calculations based on the Gogny D1S interaction, suggesting ground state shape transition from oblate to prolate then back to oblate between N = 52 − 60 and indicating shape coexistence.

  • Rice S, Algora A, Tain J, Valencia E, Agramunt J, Rubio B, Gelletly W, Regan P, Zakari-Issoufou A, Fallot M, Porta A, Rissanen J, Eronen T, Aysto J, Batist L, Bowry M, Bui V, Caballero-Folch R, Cano-Ott D, Elomaa V, Estevez E, Farrelly G, Garcia A, Gomez-Hornillos B, Gorlychev V, Hakala J, Jordan M, Jokinen A, Kolhinen V, Kondev F, Martinez T, Mendoza E, Moore I, Penttila H, Podolyak Z, Reponen M, Sonnenschein V, Sonzogni A, Sarriguren P. (2017) 'Total Absorption Spectroscopy Study of the Beta Decay of 86Br and 91 1 Rb'. American Physical Society Physical Review C, 96 Article number 014320

    Abstract

    The beta decays of 86Br and 91Rb have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the IGISOL facility in Jyvaskyla and further purified using the JYFLTRAP. 86Br and 91Rb are considered high priority contributors to the decay heat in reactors. In addition 91Rb was used as a normalization point in direct measurements of mean gamma energies released in the beta decay of fission products by Rudstam et al. assuming that this decay was well known from high-resolution measurements. Our results shows that both decays were suffering from the Pandemonium effect and that the results of Rudstam et al. should be renormalized.

  • Rice S, Algora A, Tain J, Valencia E, Agramunt J, Rubio B, Gelletly W, Regan PH, Zakari-Issoufou A, Fallot M, Porta A, Rissanen J, Eronen T, Äystö J, Batist L, Bowry M, Bui V, Caballero-Folch R, Cano-Ott D, Elomaa V, Estevez E, Farrelly G, Garcia A, Gomez-Hornillos B, Gorlychev V, Hakala J, Jordan M, Jokinen A, Kolhinen V, Kondev F, Martínez T, Mason P, Mendoza E, Moore I, Penttilä H, Podolyak Z, Reponen M, Sonnenschein V, Sonzogni A, Sarriguren P. (2017) 'Total absorption spectroscopy study of the β decay of 86Br and 91Rb'. American Physical Society Physical Review C, 96 (1) Article number 014320

    Abstract

    The beta decays of 86Br and 91Rb have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the Ion Guide Isotope Separator On-Line facility in Jyväskylä and further purified using the JYFLTRAP. 86Br and 91Rb are considered to be major contributors to the decay heat in reactors. In addition, 91Rb was used as a normalization point in direct measurements of mean gamma energies released in the beta decay of fission products by Rudstam et al. assuming that this decay was well known from high-resolution measurements. Our results show that both decays were suffering from the Pandemonium effect and that the results of Rudstam et al. should be renormalized. The relative impact of the studied decays in the prediction of the decay heat and antineutrino spectrum from reactors has been evaluated

  • Jungclaus A, Grawe H, Nishimura S, Doornenbal P, Lorusso G, Simpson G, Söderström P, Sumikama T, Taprogge J, Xu Z, Baba H, Browne F, Fukuda N, Gernhäuser R, Gey G, Inabe N, Isobe T, Jung H, Kameda D, Kim G, Kim Y, Kojouharov I, Kubo T, Kurz N, Kwon Y, Liang Z, Sakurai H, Schaffner H, Shimizu Y, Steiger K, Suzuki H, Takeda H, Vajta Z, Watanabe H, Wu J, Yagi A, Yoshinaga K, Benzoni G, Bönig S, Chae K, Coraggio L, Daugas J, Drouet F, Gadea A, Gargano A, Ilieva S, Itaco N, Kondev F, Kröll T, Lane G, Montaner-Pizá A, Moschner K, Mücher D, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyak Z, Wendt A. (2017) 'Observation of a γ -decaying millisecond isomeric state in 128 Cd 80'. Elsevier Physics Letters B, 772, pp. 483-488.

    Abstract

    A new high-spin isomer in the neutron-rich nucleus 128Cd was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T1/2=6.3(8) ms was measured for the new state which was tentatively assigned a spin/parity of (15−). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus 129Cd. In the present experiment no evidence was found for the decay of a 18+ E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h11/2 and the 0g9/2 orbit, respectively, which is predicted to exist by the shell model.

  • Lettmann M, Werner V, Pietralla N, Doornenbal P, Obertelli A, Rodríguez T, Sieja K, Authelet G, Baba H, Calvet D, Château F, Chen S, Corsi A, Delbart A, Gheller J, Giganon A, Gillibert A, Lapoux V, Motobayashi T, Niikura M, Paul N, Roussé J, Sakurai H, Santamaria C, Steppenbeck D, Taniuchi R, Uesaka T, Ando T, Arici T, Blazhev A, Browne F, Bruce A, Caroll R, Chung L, Cortés M, Dewald M, Ding B, Flavigny F, Franchoo S, Górska M, Gottardo A, Jungclaus A, Lee J, Linh B, Liu J, Liu Z, Lizarazo C, Momiyama S, Moschner K, Nagamine S, Nakatsuka N, Nita C, Nobs C, Olivier L, Patel Z, Podolyak Z, Rudigier M, Saito T, Shand C, Söderström P, Stefan I, Vaquero V, Wimmer K, Xu Z. (2017) 'Triaxiality of neutron-rich 84;86;88Ge from low-energy nuclear spectra'. American Physical Society Physical Review C, 96 (1) Article number 011301(R)

    Abstract

    -ray transitions between low-spin states of the neutron-rich 84;86;88Ge were measured by means of in-flight -ray spectroscopy at 270 MeV/u. Excited 6+ 1 , 4+ 1;2 and 2+ 1;2 states of 84;86Ge and 4+ 1 and 2+ 1;2 states of 88Ge were observed. Furthermore a candidate for a 3+ 1 state of 86Ge was identified. This state plays a key role in the discussion of ground-state triaxiality of 86Ge, along with other features of its low-energy level scheme. A new region of triaxially deformed nuclei is proposed in the Ge isotopic chain.

  • Caballero-Folch R, Domingo-Pardo C, Agramunt J, Algora A, Ameil F, Ayyad Y, Benlliure J, Bowry M, Calvino F, Cano-Ott D, Cortes G, Davinson T, Dillmann I, Estrade A, Evdokimov A, Faestermann T, Farinon F, Galaviz D, Garcia A, Geissel H, Gelletly W, Gernhauser R, Gomez-Hornillos M, Guerrero C, Heil M, Hinke C, Knobel R, Kojouharov I, Kurcewicz J, Kurz N, Litvinov Y, Maier L, Marganiec J, Marta M, Martinez T, Montes F, Mukha I, Napoli D, Nociforo C, Paradela C, Pietri S, Podolyak Z, Prochazka A, Rice S, Riego A, Rubio B, Schaffner H, Scheidenberger C, Smith K, Sokol E, Steiger K, Sun B, Tain J, Takechi M, Testov D, Weick H, Wilson E, Winfield J, Wood R, Woods P, Yeremin A. (2017) 'Beta-decay half-lives and Beta-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb and Bi, beyond N=126'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 95 (6) Article number 064322

    Abstract

    Background: Previous measurements of Beta-delayed neutron emitters comprise around 230 nuclei, spanning from the 8He up to 150La. Apart from 210Tl, with a minuscule branching ratio of 0.07%, no other neutron emitter is measured yet beyond A = 150. Therefore new data are needed, particularly in the heavy mass region around N=126, in order to guide theoretical models and to understand the formation of the third r-process peak at A 195. Purpose: To measure both, Beta-decay half-lives and neutron branching ratios of several neutron-rich Au, Hg, Tl, Pb and Bi isotopes beyond N = 126. Method: Ions of interest are produced by fragmentation of a 238U beam, selected and identifed via the GSI-FRS fragment separator. A stack of segmented silicon detectors (SIMBA) is used to measure ion-implants and -decays. An array of 30 3He tubes embedded in a polyethylene matrix (BELEN) is used to detect neutrons with high efficiency and selectivity. A self-triggered digital system is employed to acquire data and to enable time-correlations. The latter are analyzed with an analytical model and results for the half-lives and neutron-branching ratios are derived using the binned Maximum-Likelihood method. Results: Twenty new Beta-decay half-lives are reported for 204

  • John P, Valiente-Dob on J, Mengoni D, Modamio V, Lunardi S, Bazzacco D, Gadea A, Wheldon C, Rodr guez T, Alexander T, de Angelis G, Ashwood N, Barr M, Benzoni G, Birkenbach B, Bizzeti P, Bizzeti-Sona A, Bottoni S, Bowry M, Bracco A, Browne F, Bunce M, Camera F, Corradi L, Crespi F, Melon B, Farnea E, Fioretto E, Gottardo A, Grente L, Hess H, Kokalova T, Mijatovi c T, Montagnoli G, Montanari D, Napoli D, Podolyak Z, Pollarolo G, Recchia F, Reiter P, Roberts O, Sahin E, Salsac M, Scarlassara F, Sferrazza M, Soderstrom P, Stefanini A, Szilner S, Ur C, Vogt A, Walshe A. (2017) 'In-beam gamma-ray spectroscopy of the neutron-rich platinum isotope 200Pt toward the N = 126 shell gap'. American Physical Society Physical Review C: Nuclear Physics, 95 Article number 064321 , pp. 064321-1.

    Abstract

    The neutron-rich nucleus \nucleus{200}{Pt} is investigated via in-beam \gamma-ray spectroscopy in order to study the shape evolution in the neutron-rich platinum isotopes towards the N = 126 shell closure. The two-neutron transfer reaction \nucleus{198}{Pt}(\nucleus{82}{Se}, \nucleus{80}{Se})\nucleus{200}{Pt} is used to populate excited states of \nucleus{200}{Pt}. The Advanced Gamma Ray Tracking Array (AGATA) demonstrator coupled with the PRISMA spectrometer detects \gamma rays coincident with the \nucleus{80}{Se} recoils, the binary partner of \nucleus{200}{Pt}. The binary partner method is applied to extract the \gamma-ray transitions and build the level scheme of \nucleus{200}{Pt}. The level at 1884\,keV reported by Yates et. al [Phys. Rev. C 37, 1889] was confirmed to be at 1882.1\,keV and assigned as the (6^+_1) state. An additional \gamma ray was found and it presumably de-excites the (8^+_1) state. The results are compared with state-of-the-art beyond mean-field calculations, performed for the even-even \nucleus{190-204}{Pt} isotopes, revealing that \nucleus{200}{Pt} marks the transition from the \gamma-unstable behaviour of lighter Pt nuclei towards a more spherical one when approaching the N=126 shell closure.

  • Flavigny F, Doornenbal P, Obertelli A, Delaroche J, Girod M, Libert J, Rodriguez T, Authelet G, Baba H, Calvet D, Chateau F, Chen S, Corsi A, Delbart A, Gheller J, Giganon A, Gillibert A, Lapoux V, Motobayashi T, Niikura M, Paul N, Rousse J, Sakura H, Santamaria C, Steppenbeck D, Taniuchi R, Uesaka T, Ando T, Arici T, Blazhev A, Browne F, Bruce A, Carroll R, Chung L, Cortes M, Dewald M, Ding B, Franchoo S, Gorska M, Gottardo A, Jungclaus A, Lee J, Lettmann M, Linh B, Liu J, Liu Z, Lizarazo C, Momiyama S, Moschner K, Nagamine S, Nakatsuka N, Nita C, Nobs C, Olivier L, Orlandi R, Patel Z, Podolyak Z, Rudigier M, Saito T, Shand C, Soderstrom P, Stefan I, Vaquero V, Werner V, Wimmer K, Xu Z. (2017) 'Shape Evolution in Neutron-rich Krypton Isotopes beyond N = 60 : First spectroscopy of 98;100Kr'. American Physical Society Physical Review Letters, 118 (24) Article number 242501

    Abstract

    We report on the first γ-ray spectroscopy of low-lying states in neutron-rich 98,100Kr isotopes obtained from 99,101Rb(p,2p) reactions at ∼ 220 MeV/nucleon. A reduction of the 2+ 1 state energies beyond N = 60 demonstrates a significant increase of deformation, shifted in neutron number compared to the sharper transition observed in strontium and zirconium isotopes. State-of-theart beyond-mean-field calculations using the Gogny D1S interaction predict level energies in good agreement with experimental results. The identification of a low-lying (0+ 2 , 2+ 2 ) state in 98Kr provides the first experimental evidence of a competing configuration at low energy in neutron-rich krypton isotopes consistent with the oblate-prolate shape coexistence picture suggested by theory

  • Wilson J, Lebois M, Qi L, Amador-Celdran P, Bleuel D, Briz J, Carroll R, Catford WN, De Witte H, Doherty D, Eloirdi R, Georgiev G, Gottardo A, Goasduff A, Hadyńska-Klęk K, Hauschild K, Hess H, Ingeberg V, Konstantinopoulos T, Ljungvall J, Lopez-Martens A, Lorusso G, Lozeva R, Lutter R, Marini P, Matea I, Materna T, Mathieu L, Oberstedt A, Oberstedt S, Panebianco S, Podolyak Z, Porta A, Regan PH, Reiter P, Rezynkina K, Rose S, Sahin E, Seidlitz M, Serot O, Shearman R, Siebeck B, Siem S, Smith A, Tveten G, Verney D, Warr N, Zeiser F, Zielinska M. (2017) 'Anomalies in the Charge Yields of Fission Fragments from the U(n,f)238 Reaction'. American Physical Society Physical Review Letters, 118 (22), pp. 222501-1.

    Abstract

    Fast-neutron-induced fission of 238U at an energy just above the fission threshold is studied with a novel technique which involves the coupling of a high-efficiency γ-ray spectrometer (MINIBALL) to an inverse-kinematics neutron source (LICORNE) to extract charge yields of fission fragments via γ−γ coincidence spectroscopy. Experimental data and fission models are compared and found to be in reasonable agreement for many nuclei; however, significant discrepancies of up to 600% are observed, particularly for isotopes of Sn and Mo. This indicates that these models significantly overestimate the standard 1 fission mode and suggests that spherical shell effects in the nascent fission fragments are less important for low-energy fast-neutron-induced fission than for thermal neutron-induced fission. This has consequences for understanding and modeling the fission process, for experimental nuclear structure studies of the most neutron-rich nuclei, for future energy applications (e.g., Generation IV reactors which use fast-neutron spectra), and for the reactor antineutrino anomaly.

  • Régis J, Jolie J, Saed-Samii N, Warr N, Pfeiffer M, Blanc A, Jentschel M, Köster U, Mutti P, Soldner T, Simpson G, Drouet F, Vancraeyenest A, de France G, Clément E, Stezowski O, Ur C, Urban W, Regan PH, Podolyak Z, Larijani C, Townsley C, Carroll R, Wilson E, Fraile L, Mach H, Paziy V, Olaizola B, Vedia V, Bruce A, Roberts O, Smith J, Scheck M, Kröll T, Hartig A, Ignatov A, Ilieva S, Lalkovski S, Korten W, Mărginean N, Otsuka T, Shimizu N, Togashi T, Tsunoda Y. (2017) 'Abrupt shape transition at neutron number N=60 : B(E2) values in Sr94,96,98 from fast γ−γ timing'. American Physical Society Physical Review C, 95 (5) Article number 054319 , pp. 054319-1-054319-7.

    Abstract

    Lifetimes of low-lying yrast states in neutron-rich 94,96,98Sr have been measured by Germanium-gated γ−γ fast timing with LaBr3(Ce) detectors using the EXILL&FATIMA spectrometer at the Institut Laue-Langevin. Sr fission products were generated using cold-neutron-induced fission of 235U and stopped almost instantaneously within the thick target. The experimental B(E2) values are compared with results of Monte Carlo shell-model calculations made without truncation on the occupation numbers of the orbits spanned by eight proton and eight neutron orbits and show good agreement. Similarly to the Zr isotopes, the abrupt shape transition in the Sr isotopes near neutron number N=60 is identified as being caused by many-proton excitations to its g9/2 orbit.

  • Wood RT, Walker PM, Lane G, Carroll R, Cullen D, Dracoulis G, Hota S, Kibédi T, Palalani N, Podolyak Z, Reed M, Schiffl K, Wright A. (2017) 'Three-quasiparticle isomer in 173Ta and the excitation energy dependence of K-forbidden transition rates'. American Physical Society Physical Review C, 95 Article number 054308

    Abstract

    Using the 168Er(10B,5n) reaction at a beam energy of 68 MeV, new data have been obtained for the population and decay of a T1/2 = 148 ns, Kπ = 21/2− three-quasiparticle isomer at 1717 keV in 173Ta. Revised decay energies and intensities have been determined, together with newly observed members of a rotational band associated with the isomer. By comparison with other isomers in the A ≈ 180 deformed region, the 173Ta isomer properties help to specify the key degrees of freedom that determine K-forbidden transition rates. In particular, when all three quasiparticles are of the same nucleon type, there is a strong dependence of the E2 reduced hindrance factor on the isomer excitation energy.

  • Wang F, Sun B, Liu Z, Page R, Qi C, Scholey C, Ashley S, Bianco L, Cullen I, Darby I, Eeckhaudt S, Garnsworthy A, Gelletly W, Gomez-Hornillos M, Grahn T, Greenlees P, Jenkins D, Jones G, Jones P, Joss D, Julin R, Juutinen S, Ketelhut S, Khan S, Kishada A, Leino M, Niikura M, Nyman M, Pakarinen J, Pietri S, Podolyak Z, Rahkila P, Rigby S, Saren J, Shizuma T, Sorri J, Steer S, Thompson N, Uusitalo J, Walker PM, Williams S, Zhang H, Zhang W, Zhu L. (2017) 'Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu'. Elsevier Physics Letters B, 770, pp. 83-87.

    Abstract

    The quenching of the experimental spectroscopic factor for the proton decay of 151mLu from the short-lived d3=2 isomeric state has been a long standing problem. In the present work, the proton energy value and half-life of this isomer were remeasured to be 1295(5) keV and 15.4 0.8 s, respectively, in an experiment at the Accelerator Laboratory of the University of Jyvaskyla. The re ned experimental data can resolve the discrepancy in the spectroscopic factor with the WKB approximation. It is also found that the proton formation probability extracted from the present measurements is much larger than that from the adopted data before, indicating no signi cant hindrance for the proton decay of 151mLu.

  • Daniel T, Kisyov S, Regan PH, Marginean N, Podolyak Z, Marginean R, Nomura K, Rudigier M, Mihai R, Werner V, Carroll R, Gurgi LA, Oprea A, Berry TA, Serban A, Nita C, Sotty C, Suvaila R, Turturica A, Costache C, Stan L, Olacel A, Boromiza M, Toma S. (2017) 'γ -ray spectroscopy of low-lying excited states and shape competition in Os 194'. American Physical Society Physical Review C, 95 (2) Article number 024328

    Abstract

    The properties of excited states in the neutron-rich nucleus 194Os have been investigated using the 192Os(18O,16O)194Os reaction with an 80 MeV beam provided by the IFIN-HH Laboratory, Bucharest. Discrete γ -ray decays from excited states have been measured using the hybrid HPGe-LaBr3(Ce) array RoSPHERE. The current work identifies a number of previously unreported low-lying nonyrast states in 194Os as well as the first measurement of the half-life of the yrast 2+ state of 302(50) ps. This is equivalent to a B(E2 : 2+ → 0+) = 45(16) W.u. and intrinsic quadrupole deformation of βeff = 0.14(1). The experimental results are compared with Hartree-Fock-Bogoliubov–interacting-boson-model calculations and are consistent with a reduction in a quadrupole collectivity in Os isotopes with increasing neutron number.

  • Valencia E, Tain J, Algora A, Agramunt J, Estevez E, Jordan M, Rubio B, Rice S, Regan PH, Gelletly W, Podolyak Z, Bowry M, Mason P, Farrelly G, Zakari-Issoufou A, Fallot M, Porta A, Bui V. (2017) 'Total absorption γ -ray spectroscopy of the β-delayed neutron emitters 87Br, 88Br, and 94Rb'. American Physical Society Physical Review C: Nuclear Physics, Article number 024320

    Abstract

    We investigate the decay of 87,88Br and 94Rb using total absorption γ -ray spectroscopy. These important fission products are β-delayed neutron emitters. Our data show considerable βγ intensity, so far unobserved in high-resolution γ -ray spectroscopy, from states at high excitation energy. We also find significant differences with the β intensity that can be deduced from existing measurements of the β spectrum. We evaluate the impact of the present data on reactor decay heat using summation calculations. Although the effect is relatively small it helps to reduce the discrepancy between calculations and integral measurements of the photon component for 235U fission at cooling times in the range 1–100 s. We also use summation calculations to evaluate the impact of present data on reactor antineutrino spectra. We find a significant effect at antineutrino energies in the range of 5 to 9 MeV. In addition, we observe an unexpected strong probability for γ emission from neutron unbound states populated in the daughter nucleus. The γ branching is compared to Hauser-Feshbach calculations, which allow one to explain the large value for bromine isotopes as due to nuclear structure. However the branching for 94Rb, although much smaller, hints of the need to increase the radiative width γ by one order of magnitude. This increase in γ would lead to a similar increase in the calculated (n,γ ) cross section for this very neutron-rich nucleus with a potential impact on r process abundance calculations.

  • Wu J, Nishimura S, Lorusso G, Moller P, Ideguchi E, Regan PH, Simpson G, Soderstrom P, Walker PM, Watanabe H, Xu Z, Baba H, Browne F, Daido R, Doornenbal P, Fang Y, Gey G, Isobe T, Lee P, Liu J, Li Z, Korkulu Z, Patel Z, Phong V, Rice S, Sakurai H, Sinclair L, Sumikama T, Tanaka M, Yagi A, Ye Y, Yokoyama R, Zhang G, Alharbi T, Aoi N, Bello Garrote F, Benzoni G, Bruce A, Carroll R, Chae K, Dombradi Z, Estrade A, Gottardo A, Griffin C, Kanaoka H, Kojouharov I, Kondev F, Kubono S, Kurz N, Kuti I, Lalkovski S, Lane G, Lee E, Lokotko T, Lotay GJ, Moon C, Nishibata H, Nishizuka I, Nita C, Odahara A, Podolyak Z, Roberts O, Schaffner H, Shand CM, Taprogge J, Terashima S, Vajta Z, Yoshida S. (2017) '94 -Decay Half-lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation'. American Physical Society Physical Review Letters, 118 (7) Article number 072701

    Abstract

    The -decay half-lives of 94 neutron-rich nuclei 144−151Cs, 146−154Ba, 148−156La, 150−158Ce, 153−160Pr, 156−162Nd, 159−163Pm, 160−166Sm, 161−168Eu, 165−170Gd, 166−172Tb, 169−173Dy, 172−175Ho and two isomeric states 174mEr, 172mDy were measured at Radioactive Isotope Beam Factory (RIBF), providing a new experimental basis to test theoretical models. Striking, large drops of -decay half-lives are observed at neutron-number N = 97 for 58Ce, 59Pr, 60Nd, 62Sm, and N = 105 for 63Eu, 64Gd, 65Tb, 66Dy. Features in the data mirror the interplay between pairing effects and microscopic structure. r-Process network calculations performed for a range of mass models and astrophysical conditions show that the 57 half-lives measured for the first time play an important role in shaping the abundance pattern of rare-earth elements in the solar system.

  • Spagnoletti P, Simpson G, Carroll R, Regis J, Blanc A, Jentschel M, Koster U, Mutti P, Soldner T, de France G, Ur C, Urban W, Bruce A, Drouet F, Fraile L, Gaffney L, Ghit˘a D, Ilieva S, Jolie J, Korten W, Kroll T, Larijarni C, Lalkovski S, Lica R, Mach H, Marginean N, Paziy V, Podolyak Z, Regan PH, Scheck M, Saed-Samii N, Thiamova G, Townsley C, Vancraeyenest A, Vedia V, Gargano A, Van Isacker P. (2017) 'Half-life of the 15/2+ state of 135I: A test of E2 seniority relations'. American Physical Society Physical Review C: Nuclear Physics, 95 Article number 021302

    Abstract

    The half-life of the 15/2+ 1 state of the 3-valence-proton nucleus 135I has been measured to be 1.74(8) ns using the EXILL-FATIMA mixed array of Ge and LaBr3 detectors. The nuclei were produced following the cold neutron-induced fission of a 235U target at the PF1B beam line of the Institut Laue-Langevin. The extracted B(E2; 15/2+ → 11/2+) value enabled a test of seniority relations for the first time between E2 transition rates. Large-scale shell-model calculations were performed for 134Te and 135I, and reinterpreted in a single-orbit approach. The results show that the two-body component of the E2 operator can be large whereas energy shifts due to the three-body component of the effective interaction are small.

  • Vogt A, Birkenbach B, Reiter P, Siciliano M, Hadynska-Klek K, Valiente-Dobón J, Wheldon C, Teruya E, Yoshinaga N, Arnswald K, Bazzacco D, Blazhev A, Bowry M, Bracco A, Bruyneel B, Chakrawarthy R, Chapman R, Cline D, Corradi L, Crespi F, Podolyak Z . (2017) 'Isomers and high-spin structures in the N=81 isotones 135Xe and 137Ba'. American Physical Society Physical Review C: Nuclear Physics, 95 Article number 024316
    [ Status: Accepted ]

    Abstract

    The high-spin structures of the N = 81 isotones 135Xe and 137Ba are investigated after multinucleontransfer (MNT) and fusion-evaporation reactions. Both nuclei are populated in (i) 136Xe+238U and (ii) 136Xe+208Pb MNT reactions employing the high-resolution Advanced Gamma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (iii), in the 136Xe+198Pt MNT reaction employing the -ray array GAMMASPHERE in combination with the gas detector array Chico, and (iv) via a 11B+130Te fusion-evaporation reaction. The high-spin level schemes of 135Xe and 137Ba are considerably extended to higher energies. The 2058-keV (19=2 ) state in 135Xe is identified as an isomer, completing the systematics for the N = 81 isotones. Its half-life is measured to be 8.6(10) ns, corresponding to a transition probability of B(E2; 19=2 ! 15=2 ) = 0:539(69) W.u. Latest shell model calculations considering 132Sn as a closed core reproduce the experimental findings and provide guidance to the interpretation of the new levels. The experimentally deduced reduced quadrupole transition probabilities of the isomeric states are compared to shell-model predictions.

  • Tu X, Kelic-Heil A, Litvinov Y, Podolyak Z, Zhang Y, Huang W, Xu H, Blaum K, Bosch F, Chen R, Walker PM. (2017) 'Application of Isochronous Mass Spectrometry for the study of angular momentum population in projectile fragmentation reactions'. American Physical Society Physical Review C: Nuclear Physics, 95 (1) Article number 014610

    Abstract

    Isochronous mass spectrometry was applied to measure isomeric yield ratios of fragmentation reaction prod- ucts. This approach is complementary to conventional g -ray spectroscopy in particular for measuring yield ratios for long-lived isomeric states. Isomeric yield ratios for the high-spin I = 19=2¯h states in the mirror nuclei 53Fe and 53Co are measured to study angular momentum population following the projectile fragmentation of 78Kr at energies of 480 A MeV on a beryllium target. The 19/2 state isomeric ratios of 53Fe produced from different projectiles in literature have also been extracted as a function of mass number difference between projectile and fragment (mass loss). The results are compared to ABRABLA07 model calculations. The isomeric ratios of 53Fe produced using different projectiles suggest that the theory underestimates not only the previously reported dependence on the spin but also the dependence on the mass loss.

  • Paul N, Corsi A, Obertelli A, Doornenbal P, Authelet G, Baba H, Bally B, Bender M, Calvet D, Chateau F, Chen S, Delaroche J, Delbart A, Gheller J, Giganon A, Gillibert A, Girod M, Heenen P, Lapoux V, Libert J, Motobayashi T, Niikura M, Otsuka T, Rodrıguez T, Rousse J, Sakurai H, Santamaria C, Shimizu N, Steppenbeck D, Taniuchi R, Togashi T, Tsunoda Y, Uesaka T, Ando T, Arici T, Blazhev A, Browne F, Bruce A, Carroll R, Chung L, Cortes M, Dewald M, Ding B, Flavigny F, Franchoo S, Gorska M, Gottardo A, Jungclaus A, Lee J, Lettmann M, Linh B, Liu J, Liu Z, Lizarazo C, Momiyama S, Moschner K, Nagamine S, Nakatsuka N, Nita C, Nobs C, Olivier L, Patel Z, Podolyak Z, Rudigier M, Saito T, Shand CM, Soderstrom P, Stefan I, Orlandi R, Vaquero V, Werner V, Wimmer K, Xu Z. (2017) 'Are there signatures of harmonic oscillator shells far from stability? - First spectroscopy of 110Zr'. American Physical Society Physical Review Letters, 118 (3) Article number 032501

    Abstract

    The first measurement of the low-lying states of the neutron-rich 110 Zr and 112 Mo was performed via in-beam γ -ray spectroscopy after one proton removal on hydrogen at ∼ 200     MeV / nucleon . The 2 + 1 excitation energies were found at 185(11) keV in 110 Zr , and 235(7) keV in 112 Mo , while the R 42 = E ( 4 + 1 ) / E ( 2 + 1 ) ratios are 3.1(2), close to the rigid rotor value, and 2.7(1), respectively. These results are compared to modern energy density functional based configuration mixing models using Gogny and Skyrme effective interactions. We conclude that first levels of 110 Zr exhibit a rotational behavior, in agreement with previous observations of lighter zirconium isotopes as well as with the most advanced Monte Carlo shell model predictions. The data, therefore, do not support a harmonic oscillator shell stabilization scenario at Z = 40 and N = 70 . The present data also invalidate predictions for a tetrahedral ground state symmetry in 110 Zr .

  • Caballero-Folch1 R, Domingo-Pardo C, Agramunt J, Algora A, Ameil F, Arcones A, Ayyad Y, Benlliure J, Borzov I, Bowry M, Calvino F, Cano-Ott D, Cortes G, Davinson T, Dillmann I, Estrade A, Evdokimov A, Faestermann T, Farinon F, Galaviz D, Garcıa A, Geissel H, Gelletly W, Gernhauser R, Gomez-Hornillos M, Guerrero C, Heil M, Hinke C, Knobel R, Kojouharov I, Kurcewicz J, Kurz N, Litvinov Y, Maier L, Marganiec J, Marketin T, Marta M, Martınez T, Martınez-Pinedo G, Montes F, Mukha I, Napoli D, Nociforo C, Paradela C, Pietri S, Podolyak Z, Prochazka A, Rice S, Riego A, Rubio B, Schaffner H, Scheidenberger C, Smith K, Sokol E, Steiger K, Sun B, Taın J, Takechi M, Testov D, Weick H, Wilson E, Winfield J, Wood RT, Woods P, Yeremin A. (2017) 'First measurement of several β-delayed neutron emitting isotopes beyond N=126'. American Physical Society Physical Review Letters., 117 (1) Article number 012501

    Abstract

    The β-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with β-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb and Bi in the mass region N&126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the β-decay strength distribution. This provides important constraints to global theoretical models currently used in r-process nucleosynthesis.

  • Gurgi L, Regan P, Söderström P, Watanabe H, Walker P, Podolyak Z, Nishimura S, Berry T, Doornenbal P, Lorusso G, Isobe T, Baba H, Xu Z, Sakurai H, Sumikama T, Catford W, Bruce A, Browne F, Lane G, Kondev F, Odahara A, Wu J, Liu H, Xu F, Korkulu Z, Lee P, Liu J, Phong V, Yag A, Zhang G, Alharbi T, Carroll R, Chae K, Dombradi Z, Estrade A, Fukuda N, Griffin C, Ideguchi E, Inabe N, Kanaoka H, Kojouharov I, Kubo T, Kubono S, Kurz N, Kuti I, Lalkovski S, Lee E, Lee C, Lotay G, Moon C, Nishizuka I, Nita C, Patel Z, Roberts O, Schaffner H, Shand C, Suzuki H, Takeda H, Terashima S, Vajta Z, Yoshida S, Valiente-Dòbon J. (2016) 'Isomer spectroscopy of neutron-rich 168Tb103'. Elsevier Radiation Physics and Chemistry, 140, pp. 493-496.

    Abstract

    In-flight fission of a 345 MeV per nucleon 238U primary beam on a 2 mm thick 9Be target has been used to produce and study the decays of a range of neutron-rich nuclei centred around the doubly mid-shell nucleus 170Dy at the RIBF Facility, RIKEN, Japan. The produced secondary fragments of interest were identified eventby- event using the BigRIPS separator. The fragments were implanted into the WAS3ABI position sensitive silicon active stopper which allowed pixelated correlations between implants and their subsequent β-decay. Discrete γ-ray transitions emitted following decays from either metastable states or excited states populated following beta decay were identified using the 84 coaxial high-purity germanium (HPGe) detectors of the EURICA spectrometer, which was complemented by 18 additional cerium-doped lanthanum bromide (LaBr3)

  • Pragati, Deo A, Podolyak Z, Walker PM, Algora A, Rubio B, Agramunt J, Fraile L, Al-Dahan N, Alkhomashi N, Briz J, Estevez Aguado M, Farrelly G, Gelletly W, Herlert A, Köster U, Maira A. (2016) 'On the decay of the N = 126, 213Fr nucleus'. American Physical Society Physical Review C: Nuclear Physics, 94 (6) Article number 064316

    Abstract

    Gamma rays following the EC= + and alpha decay of the N = 126, 213Fr nucleus have been observed at the CERN isotope separator on-line (ISOLDE) facility with the help of gamma-ray and conversion electron spectroscopy. These gamma rays establish several hitherto unknown excited states in 213Rn. Also, ve new -decay branches from the 213Fr ground state have been discovered. Shell model calculations have been performed to understand the newly observed states in 213Rn.

  • Podolyak Z, Shand CM, Lalovic, N, Gerl J, Rudolph D, Alexander T, Boutachkov P, Cortes ML, Gorska M, Kojouharov I, Kurz N, Louchart C, Merchan E, Michelagnoli C, Perez-Vidal RM, Pietri S, Ralet D, Reese M, Schaffner H, Stahl C, Weick H, Ameil F, de Angelis G, Arici T, Carroll R, Dombradi Z, Gadea A, Golubev P, Lettmann M, Lizarazo C, Birkenbach B, Bruyneel B, Burrows I, Charles L, Clement E, Crespi FCL, Cullen DM, Desesquelles P, Eberth J, Gonzalez V, Habermann T, Harkness-Brennan L, Hess H, Judson DS, Jungclaus A, Korten W, Labiche M, Maj A, Mengoni D, Napoli DR, Pullia A, Quintana B, Rainovski G, Reiter P, Salsac MD, Sanchis E, Valiente Dobon JJ. (2016) 'Role of the Δ Resonance in the Population of a Four-Nucleon State in the Fe56→Fe54 Reaction at Relativistic Energies'. American Physical Society Physical Review Letters, 117 (22) Article number 222302

    Abstract

    The Fe54 nucleus was populated from a Fe56 beam impinging on a Be target with an energy of E/A=500  MeV. The internal decay via γ-ray emission of the 10+ metastable state was observed. As the structure of this isomeric state has to involve at least four unpaired nucleons, it cannot be populated in a simple two-neutron removal reaction from the Fe56 ground state. The isomeric state was produced in the low-momentum (-energy) tail of the parallel momentum (energy) distribution of Fe54, suggesting that it was populated via the decay of the Δ0 resonance into a proton. This process allows the population of four-nucleon states, such as the observed isomer. Therefore, it is concluded that the observation of this 10+ metastable state in Fe54 is a consequence of the quark structure of the nucleons.

  • Yuan C, Liu Z, Xu F, Walker PM, Podolyak Z, Xu C, Ren ZZ, Ding B, Liu XY, Xu HS, Zhang YH, Zhou XH, Zuo W. (2016) 'Isomerism in the “south-east” of 132Sn and a predicted neutron-decaying isomer in 129Pd'. Physics Letters B, 762, pp. 237-242.
  • Söderström P, Walker PM, Wu J, Liu H, Regan PH, Watanabe H, Doornenbal P, Korkulu Z, Lee P, Liu J, Lorusso G, Nishimura S, Phong V, Sumikama T, Xu F, Lalkovski S, Lotay GJ, Patel Z, Podolyak Z, Shand CM. (2016) 'K-mixing in the doubly mid-shell nuclide 170Dy and the role of vibrational degeneracy'. Elsevier Physics Letters B, 762, pp. 404-408.

    Abstract

    A detailed study of the structure of the doubly mid-shell nucleus View the MathML source has been carried out, following isomeric and β decay. We have measured the yrast band up to the spin-parity Jπ=6+ state, the K=2γ -vibration band up to the 5+ state, a low-lying negative-parity band based on a 2− state that could be a candidate for the lowest energy octupole vibration state within this nucleus, and a candidate for the Kπ=6+ two quasi-particle isomer. This state was determined to have an excitation energy of 1643.91(23) keV and a half life of 0.99(4) μs, with a reduced hindrance for its decay to the ground-state band an order of magnitude lower than predicted by NpNn systematics. This is interpreted as being due to γ -vibrational mixing from a near degeneracy of the isomer and the 6+ state of the γ band. Furthermore, the parent nucleus 170Tb has been determined to have a half-life of View the MathML source s with a possible spin-parity of 2−.

  • Watanabe H, Zhang G, Yoshida K, Walker PM, Liu J, Wu J, Regan PH, Soderstrom P, Kanaoka H, Korkulu Z, Lee P, Nishimura S, Yagi A, Ahn D, Alharbi T, Baba H, Browne F, Bruce A, Fukuda R, Griffin C, Ideguchi E, Inabe N, Isobe T, Kanaya S, Kojouharov I, Kondev F, Kubo T, Kubono S, Kurz N, Kuti I, Lalkovski S, Lane; G, Lee C, Lee E, Lorusso G, Lotay GJ, Moon C, Nishizuka I, Nita C, Odahara A, Patel Z, Phong V, Podolyak Z, Roberts O, Sakurai H, Schaffner H, Shand CM, Shimizu Y, Sumikama T, Suzuki H, Takeda H, Terashima S, Vajta; Z, Valiente-Dobon J, Xu Z. (2016) 'Long-lived K isomer and enhanced gamma vibration in the neutron-rich nucleus 172Dy: Collectivity beyond double midshell'. Elsevier Physics Letters B, 760 (Sept), pp. 641-646.

    Abstract

    The level structure of 172Dy has been investigated for the first time by means of decay spectroscopy following in-flight fission of a 238U beam. A long-lived isomeric state with T1/2 = 0.71(5) s and K π = 8 − has been identified at 1278 keV, which decays to the ground-state and γ-vibrational bands through hindered electromagnetic transitions, as well as to the daughter nucleus 172Ho via allowed β decays. The robust nature of the K π = 8 − isomer and the ground-state rotational band reveals an axially-symmetric structure for this nucleus. Meanwhile, the γ-vibrational levels have been identified at unusually low excitation energy compared to the neighboring well-deformed nuclei, indicating the significance of the microscopic effect on the non-axial collectivity in this doubly mid-shell region. The underlying mechanism of enhanced γ vibration is discussed in comparison with the deformed Quasiparticle Random-Phase Approximation based on a Skyrme energy-density functional.

  • Gurgi LA, Regan PH, Daniel T, Podolyak Z, Bruce A, Mason P, Mǎrginean N, Mǎrginean R, Werner V, Alharbi T, Alkhomashi N, Bajoga A, Britton R, Cǎta-Danil I, Carroll R, Deleanu D, Bucurescu D, Florea N, Gheorghe I, Ghita D, Lice R, Mihai C, Mulholland K, Negret A, Olacel A, Roberts O, Sava T, Söderström P, Stroe L, Suvaila R, Toma S, Wilson E, Wood R. (2016) 'Nanosecond lifetime measurements of Iπ¼9/2- intrinsic excited states and low-lying B(E1)strengths in 183Re using combined HPGe-LaBr3 coincidence spectroscopy'. Elsevier Radiation Physics and Chemistry, 137, pp. 7-11.

    Abstract

    This paper presents precision measurements of electromagnetic decay probabilities associated with electric dipole transitions in the prolate-deformed nucleus 183Re. The nucleus of interest was formed using the fusion evaporation reaction 180Hf(7Li,4n)183Re at a beam energy of 30 MeV at the tandem accelerator at the HH-IFIN Institute, Bucharest Romania. Coincident decay gamma rays from near-yrast cascades were detected using the combined HPGe-LaBr3 detector array ROSPHERE. The time differences between cascade gamma rays were measured using the LaBr3 detectors to determine the half-lives of the two lowest lying spin-parity 9/2- states at excitation energies of 496 and 617 keV to be 5.65(5) and 2.08(3) ns respectively. The deduced E1 transition rates from these two states are discussed in terms of the K-hindrance between the low-lying structures in this prolate-deformed nucleus.

  • Calinescu S, Caceres L, Grevy S, Sorlin O, Dombradi Z, Stanoiu M, Astabatyan R, Borcea C, Borcea R, Bowry M, Catford WN, Clement E, Franchoo S, Garcia R, Gillibert R, Guerin I, Kuti I, Lukyanov S, Lepailleur A, Maslov V, Morfouace P, Mrazek J, Negoita F, Niikura M, Perrot L, Podolyak Z, Petrone C, Penionzhkevich Y, Roger T, Rotaru F, Sohler D, Stefan I, Thomas J, Vajta Z, Wilson E. (2016) 'Coulomb excitation of Ca-44 and Ar-46'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 93 (4) Article number ARTN 04433

    Abstract

    The reduced transition probabilities B(E2; 0+ g.s. → 2+ 1 ) of the 46Ar and 44Ca nuclei were studied using the Coulomb excitation technique at intermediate energy at the LISE/GANIL facility. The in-flight γ rays, emitted after the Coulomb excitation of their first 2+ states, were detected in an array of 64 BaF2 crystals. The present B(E2 ↑) value for 44Ca, 475(36) e2fm4 , agrees well with the value of 495(35) e2fm4 obtained by averaging results of previous experiments. Consistent B(E2; 0+ g.s. → 2+ 1 ) values of 225(29) e2fm4 and 234(19) e2fm4 have been obtained for 46Ar from an absolute and a relative measurement, normalized to the 44Ca value. Both results agree with the ones obtained with the same experimental technique at the NSCL facility but are a factor of 2 smaller than the shell model predictions. The drop in B(E2; 0+ g.s. → 2+ 1 ) in the Ar chain at N = 28, confirmed in this experiment, shows that 46Ar is sensitive to the N = 28 shell closure.

  • Nishimura N, Podolyak Z, Fang D-L, Suzuki T. (2016) 'Impact of the first-forbidden beta decay on the production of A similar to 195 r-process peak'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 756, pp. 273-277.
  • Patel Z, Podolyak Z, Walker PM, Regan PH, Soederstroem P-A, Watanabe H, Ideguchi E, Simpson GS, Nishimura S, Browne F, Doornenbal R, Lorusso G, Rice S, Sinclair L, Sumikama T, Wu J, Xu ZY, Aoi N, Baba H, Garrote FLB, Benzoni G, Daido R, Dombradi Z, Fang Y, Fukuda N, Gey G, Go S, Gottardo A, Inabe N, Isobe T, Kameda D, Kobayashi K, Kobayashi M, Komatsubara T, Kojouharov I, Kubo T, Kurz N, Kuti I, Li Z, Liu HL, Matsushita M, Michimasa S, Moony C-B, Nishibata H, Nishizuka I, Odahara A, Sahin E, Sakurai H, Schaffner H, Suzuki H, Takeda H, Tanaka M, Taprogge J, Vajta Z, Xu FR, Yagi A, Yokoyama R. (2016) 'Decay spectroscopy of Sm-160: The lightest four-quasiparticle K isomer'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 753, pp. 182-186.
  • Agramunt J, Tain JL, Gomez-Hornillos MB, Garcia AR, Albiol E, Algora A, Caballero-Folch R, Calvino E, Cano-Ott D, Cortes G, Domingo-Pardo C, Eronen T, Gelletly W, Gorelov D, Gorlychev V, Hakala H, Jokinen A, Jordan MD, Kankainen A, Kolhinen V, Kucuk L, Martinez T, Mason PJR, Moore I, Penttila H, Podolyak Z, Pretel C, Reponen M, Riego A, Rissanen J, Rubio B, Saastamoinen A, Tarifeno-Saldivia A, Valencia E. (2016) 'Characterization of a neutron-beta counting system with beta-delayed neutron emitters'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 807, pp. 69-78.
  • Roberts OJ, Nita CR, Bruce AM, Marginean N, Bucurescu D, Deleanu D, Filipescu D, Florea NM, Gheorghe I, Ghita D, Glodariu T, Lica R, Marginean R, Mihai C, Negret A, Sava T, Stroe L, Suvaila R, Toma S, Alharbi T, Alexander T, Aydin S, Brown BA, Browne F, Carroll RJ, Mulholland K, Podolyak Z, Regan PH, Smith JF, Smolen M, Townsley CM. (2016) 'E3 and M2 transition strengths in Bi-209(83)'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 93 (1) Article number ARTN 014309
  • Lorusso G, Shearman R, Regan PH, Judge SM, Bell S, Collins SM, Larijani C, Ivanov P, Jerome SM, Keightley JD, Lalkovski S, Pearce AK, Podolyak Z. (2015) 'Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies'. PERGAMON-ELSEVIER SCIENCE LTD APPLIED RADIATION AND ISOTOPES, TU Wien, Vienna, AUSTRIA: 109, pp. 507-511.
  • Tain JL, Algora A, Agramunt J, Guadilla V, Jordan MD, Montaner-Piza A, Rubio B, Valencia E, Cano-Ott D, Gelletly W, Martinez T, Mendoza E, Podolyak Z, Regan P, Simpson J, Smith AJ, Strachan J. (2015) 'A decay total absorption spectrometer for DESPEC at FAIR'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 803, pp. 36-46.
  • Browne F, Bruce AM, Sumikama T, Nishizuka I, Nishimura S, Doornenbal P, Lorusso G, Soederstroem P-A, Watanabe H, Daido R, Patel Z, Rice S, Sinclair L, Wu J, Xu ZY, Yagi A, Baba H, Chiga N, Carroll R, Didierjean F, Fang Y, Fukuda N, Gey G, Ideguchi E, Inabe N, Isobe T, Kameda D, Kojouharov I, Kurz N, Kubo T, Lalkovski S, Li Z, Lozeva R, Nishibata H, Odahara A, Podolyak Z, Regan PH, Roberts OJ, Sakurai H, Schaffner H, Simpson GS, Suzuki H, Takeda H, Tanaka M, Taprogge J, Werner V, Wieland O. (2015) 'Lifetime measurements of the first 2(+) states in Zr-104,Zr-106: Evolution of ground-state deformations'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 750, pp. 448-452.
  • Tu XL, Mei B, Zhang YH, Xu HS, Litvinov YA, Huang WJ, Podolyak Z, Kelic-Heil A, Zhang W, Litvinov SA, Blaum K, Zhou XH, Shuai P, Wang M, Gao BS, Chen XC, Yuan YJ, Xia JW, Yang JC, Hu ZG, Ma XW, Sun BH, Yan XL, Mao RS, Sun ZY, Xiao GQ, Xu X, Walker PM, Yamaguchi T, Bosch F, Winckler N, Chen RJ, Xing YM, Fu CY, Liu DW, Zeng Q, Ge Z, Sun Y, Zhao HW, Zhao TC. (2015) 'Study of projectile fragmentation reaction with isochronous mass spectrometry'. IOP PUBLISHING LTD PHYSICA SCRIPTA, T166 Article number ARTN 014009
  • Zakari-Issoufou A-A, Fallot M, Porta A, Algora A, Tain JL, Valencia E, Rice S, Bui VM, Cormon S, Estienne M, Agramunt J, Aysto J, Bowry M, Briz JA, Caballero-Folch R, Cano-Ott D, Cucoanes A, Elomaa V-V, Eronen T, Estevez E, Farrelly GF, Garcia AR, Gelletly W, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Jordan MD, Kankainen A, Karvonen P, Kolhinen VS, Kondev FG, Martinez T, Mendoza E, Molina F, Moore I, Perez-Cerdan AB, Podolyak Z, Penttila H, Regan PH, Reponen M, Rissanen J, Rubio B, Shiba T, Sonzogni AA, Weber C. (2015) 'Total Absorption Spectroscopy Study of Rb-92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 115 (10) Article number ARTN 102503
  • Morales AI, Benzoni G, Al-Dahan N, Vergani S, Podolyak Z, Regan PH, Swan TPD, Valiente-Dobon JJ, Bracco A, Boutachkov P, Crespi FCL, Gerl J, Gorska M, Pietri S, Walker PM, Wollersheim H-J. (2015) 'First measurement of the beta-decay half-life of Au-206'. EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY EPL, 111 (5) Article number ARTN 52001
  • Tain JL, Valencia E, Algora A, Agramunt J, Rubio B, Rice S, Gelletly W, Regan P, Zakari-Issoufou A-A, Fallot M, Porta A, Rissanen J, Eronen T, Aysto J, Batist L, Bowry M, Bui VM, Caballero-Folch R, Cano-Ott D, Elomaa V-V, Estevez E, Farrelly GF, Garcia AR, Gomez-Hornillos B, Gorlychev V, Hakala J, Jordan MD, Jokinen A, Kolhinen VS, Kondev FG, Martinez T, Mendoza E, Moore I, Penttila H, Podolyak Z, Reponen M, Sonnenschein V, Sonzogni AA. (2015) 'Enhanced gamma-Ray Emission from Neutron Unbound States Populated in beta Decay'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 115 (6) Article number ARTN 062502
  • Caceres L, Lepailleur A, Sorlin O, Stanoiu M, Sohler D, Dombradi Z, Bogner SK, Brown BA, Hergert H, Holt JD, Schwenk A, Azaiez F, Bastin B, Borcea C, Borcea R, Bourgeois C, Elekes Z, Fueloep Z, Grevy S, Gaudefroy L, Grinyer GF, Guillemaud-Mueller D, Ibrahim F, Kerek A, Krasznahorkay A, Lewitowicz M, Lukyanov SM, Mrazek J, Negoita F, de Oliveira F, Penionzhkevich Y-E, Podolyak Z, Porquet MG, Rotaru F, Roussel-Chomaz P, Saint-Laurent MG, Savajols H, Sletten G, Thomas JC, Timar J, Timis C, Vajta Z. (2015) 'Nuclear structure studies of F-24'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 92 (1) Article number ARTN 014327
  • Wilson E, Podolyák Z, Grawe H, Brown BA, Chiara CJ, Zhu S, Fornal B, Janssens RVF, Shand CM, Bowry M, Bunce M, Carpenter MP, Cieplicka-Oryńczak N, Deo AY, Dracoulis GD, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Lotay G, Reed MW, Regan PH, Rodríguez Triguero C, Seweryniak D, Szpak B, Walker PM. (2015) 'Core excitations across the neutron shell gap in <sup>207</sup>Tl'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 747, pp. 88-92.

    Abstract

    © 2015 The Authors.The single closed-neutron-shell, one proton-hole nucleus 207Tl was populated in deep-inelastic collisions of a 208Pb beam with a 208Pb target. The yrast and near-yrast level scheme has been established up to high excitation energy, comprising an octupole phonon state and a large number of core excited states. Based on shell-model calculations, all observed single core excitations were established to arise from the breaking of the N=126 neutron core. While the shell-model calculations correctly predict the ordering of these states, their energies are compressed at high spins. It is concluded that this compression is an intrinsic feature of shell-model calculations using two-body matrix elements developed for the description of two-body states, and that multiple core excitations need to be considered in order to accurately calculate the energy spacings of the predominantly three-quasiparticle states.

  • Taprogge J, Jungclaus A, Grawe H, Nishimura S, Doornenbal P, Lorusso G, Simpson GS, Soederstroem P-A, Sumikama T, Xu ZY, Baba H, Browne F, Fukuda N, Gernhaeuser R, Gey G, Inabe N, Isobe T, Jung HS, Kameda D, Kim GD, Kim Y-K, Kojouharov I, Kubo T, Kurz N, Kwon YK, Li Z, Sakurai H, Schaffner H, Steiger K, Suzuki H, Takeda H, Vajta Z, Watanabe H, Wu J, Yagi A, Yoshinaga K, Benzoni G, Boenig S, Chae KY, Coraggio L, Covello A, Daugas J-M, Drouet F, Gadea A, Gargano A, Ilieva S, Kondev FG, Kroell T, Lane GJ, Montaner-Piza A, Moschner K, Mucher D, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyak Z, Wendt A. (2015) 'beta decay of Cd-129 and excited states in In-129'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 91 (5) Article number ARTN 054324
  • Lorusso G, Nishimura S, Xu ZY, Jungclaus A, Shimizu Y, Simpson GS, Söderström PA, Watanabe H, Browne F, Doornenbal P, Gey G, Jung HS, Meyer B, Sumikama T, Taprogge J, Vajta Z, Wu J, Baba H, Benzoni G, Chae KY, Crespi FC, Fukuda N, Gernhäuser R, Inabe N, Isobe T, Kajino T, Kameda D, Kim GD, Kim YK, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Lane GJ, Li Z, Montaner-Pizá A, Moschner K, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Sakurai H, Schaffner H, Schury P, Shibagaki S, Steiger K, Suzuki H, Takeda H, Wendt A, Yagi A, Yoshinaga K. (2015) 'β-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process.'. Phys Rev Lett, United States: 114 (19)
  • Lorusso G, Nishimura S, Xu ZY, Jungclaus A, Shimizu Y, Simpson GS, Soederstroem P-A, Watanabe H, Browne F, Doornenbal P, Gey G, Jung HS, Meyer B, Sumikama T, Taprogge J, Vajta Z, Wu J, Baba H, Benzoni G, Chae KY, Crespi FCL, Fukuda N, Gernhaeuser R, Inabe N, Isobe T, Kajino T, Kameda D, Kim GD, Kim Y-K, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Lane GJ, Li Z, Montaner-Piza A, Moschner K, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyak Z, Sakurai H, Schaffner H, Schury P, Shibagaki S, Steiger K, Suzuki H, Takeda H, Wendt A, Yagi A, Yoshinaga K. (2015) 'beta-Decay Half-Lives of 110 Neutron-Rich Nuclei across the N=82 Shell Gap: Implications for the Mechanism and Universality of the Astrophysical r Process'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 114 (19) Article number ARTN 192501
  • Akber A, Reed MW, Walker PM, Litvinov YA, Lane GJ, Kibedi T, Blaum K, Bosch F, Brandau C, Carroll JJ, Cullen DM, Cullen IJ, Deo AY, Detwiler B, Dimopoulou C, Dracoulis GD, Farinon F, Geissel H, Haettner E, Heil M, Kempley RS, Knoebel R, Kozhuharov C, Kurcewicz J, Kuzminchuk N, Litvinov S, Liu Z, Mao R, Nociforo C, Nolden F, Plass WR, Podolyak Z, Prochazka A, Scheidenberger C, Shubina D, Steck M, Stoehlker T, Sun B, Swan TPD, Trees G, Weick H, Winckler N, Winkler M, Woods PJ, Yamaguchi T. (2015) 'Increased isomeric lifetime of hydrogen-like Os-192m'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 91 (3) Article number ARTN 031301
  • Browne F, Bruce AM, Sumikama T, Nishizuka I, Nishimura S, Doornenbal P, Lorusso G, Patel Z, Rice S, Sinclair L, Söderström PA, Watanabe H, Wu J, Xu ZY, Baba H, Chiga N, Carroll R, Daido R, Didierjean F, Fang Y, Gey G, Ideguchi E, Inabe N, Isobe T, Kameda D, Kojouharov I, Kurz N, Kubo T, Lalkovski S, Li Z, Lozeva R, Naoki N, Nishibata H, Odahara A, Podolyák Z, Regan PH, Roberts OJ, Sakurai H, Schaffner H, Simpson GS, Suzuki H, Takeda H, Tanaka M, Taprogge J, Werner V, Wieland O, Yagi A. (2015) 'Gamma-ray spectroscopy in the vicinity of <sup>108</sup>zr'. Acta Physica Polonica B, 46 (3), pp. 721-724.
  • Alexander T, Podolyák Z, Cortes ML, Gerl J, Rudolph D, Sarmiento LG, Ameil F, Arici T, Bazzacco D, Bauer C, Bentley MA, Blazhev A, Bowry M, Boutachkov P, Carroll R, Fahlander C, Gadea A, Gellanki J, Gelletly W, Givechev A, Goel N, Golubev P, Górska M, Gottardo A, Gregor E, Guastalla G, Habermann T, Hackstein M, Jungclaus A, Kojouharov I, Korten W, Kumar S, Kurz N, Lalovic N, Lettmann M, Lizarazo C, Louchart C, Mandal S, Merchán E, Michelagnoli C, Möller T, Moschner K, Patel Z, Pietralla N, Pietri S, Ralet D, Reese M, Regan PH, Reiter P, Schaffner H, Singh P, Stahl C, Stegmann R, Stezowksi O, Taprogge J, Thöle P, Walker PM, Wieland O, Wendt A, Wilson E, Wood R, Wollersheim HJ. (2015) 'Isomeric ratios in <sup>206</sup>Hg'. Acta Physica Polonica B, 46 (3), pp. 601-605.
  • Shand CM, Wilson E, Podolyák Z, Grawe H, Brown BA, Fornal B, Janssens RVF, Bowry M, Bunce M, Carpenter MP, Carroll RJ, Chiara CJ, Cieplicka-Oryńczak N, Deo AY, Dracoulis GD, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Lotay G, Reed MW, Regan PH, Rodriguez-Triguero C, Seweryniak D, Szpak B, Walker PM, Zhu S. (2015) 'Structure of <sup>207</sup>Pb populated in <sup>208</sup>Pb + <sup>208</sup>Pb deep-inelastic collisions'. Acta Physica Polonica B, 46 (3), pp. 619-622.
  • Alharbi T, Regan PH, Mərginean N, Podolyák Z, Roberts OJ, Bruce AM, Alkhomashi N, Britton R, Bucurescu D, Deleanu D, Filipescu D, Ghitə D, Glodariu T, Mihai C, Mulholland K, Lica R, Mərginean R, Nakhostin M, Negret A, Nita CR, Stroe L, Sava T, Townsley C, Zamfir NV. (2015) 'Lifetime of the yrast Iπ=5- state and E1 hindrance in the transitional nucleus Ce 58136'. Physical Review C - Nuclear Physics, 91 (2)
  • Jolie J, Régis JM, Wilmsen D, Saed-Samii N, Pfeiffer M, Warr N, Blanc A, Jentschel M, Köster U, Mutti P, Soldner T, Simpson GS, De France G, Urban W, Drouet F, Vancraeyenest A, Bruce AM, Roberts OJ, Fraile LM, Paziy V, Ignatov A, Kröll T, Ivanova D, Kisyov S, Lalkovski S, Podolyak Z, Regan PH, Wilson E, Korten W, Ur CA, Lica R, Marginean N. (2015) 'Test of the SO(6) selection rule in 196Pt using cold-neutron capture'. Nuclear Physics A, 934, pp. 1-7.
  • Molina F, Rubio B, Fujita Y, Gelletly W, Agramunt J, Algora A, Benlliure J, Boutachkov P, Caceres L, Cakirli RB, Casarejos E, Domingo-Pardo C, Doornenbal P, Gadea A, Ganioglu E, Gascon M, Geissel H, Gerl J, Gorska M, Grebosz J, Hoischen R, Kumar R, Kurz N, Kojouharov I, Susam LA, Matsubara H, Morales AI, Oktem Y, Pauwels D, Perez-Loureiro D, Pietri S, Podolyak Z, Prokopowicz W, Rudolph D, Schaffner H, Steer SJ, Tain JL, Tamii A, Tashenov S, Valiente-Dobon JJ, Verma S, Wollersheim H-J. (2015) 'T-z =-1 -> 0 beta decays of Ni-54, Fe-50, Cr-46, and Ti-42 and comparison with mirror (He-3,t) measurements'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 91 (1) Article number ARTN 014301
  • Podolyák Z, Shand CM, Wilson E, Brown BA, Grawe H, Chiara CJ, Zhu S, Fornal B, Janssens RVF, Bowry M, Bunce M, Carpenter MP, Cieplicka N, Deo AY, Dracoulis GD, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Lotay G, Reed MW, Regan PH, Triguero CR, Seweryniak D, Szpak B, Walker PM. (2015) 'Octupole transitions in the 208Pb region'. Journal of Physics: Conference Series, 580 (1)
  • Patel Z, Söderström PA, Podolyák Z, Regan PH, Walker PM, Watanabe H, Ideguchi E, Simpson GS, Liu HL, Nishimura S, Wu Q, Xu FR, Browne F, Doornenbal P, Lorusso G, Rice S, Sinclair L, Sumikama T, Wu J, Xu ZY, Aoi N, Baba H, Bello Garrote FL, Benzoni G, Daido R, Fang Y, Fukuda N, Gey G, Go S, Gottardo A, Inabe N, Isobe T, Kameda D, Kobayashi K, Kobayashi M, Komatsubara T, Kojouharov I, Kubo T, Kurz N, Kuti I, Li Z, Matsushita M, Michimasa S, Moon CB, Nishibata H, Nishizuka I, Odahara A, Şahin E, Sakurai H, Schaffner H, Suzuki H, Takeda H, Tanaka M, Taprogge J, Vajta Z, Yagi A, Yokoyama R. (2014) 'Isomer decay spectroscopy of Sm 164 and Gd 166: Midshell collectivity around N=100'. Physical Review Letters, 113 (26)

    Abstract

    © 2014 American Physical Society.Excited states in the N=102 isotones Gd166 and Sm164 have been observed following isomeric decay for the first time at RIBF, RIKEN. The half-lives of the isomeric states have been measured to be 950(60) and 600(140) ns for Gd166 and Sm164, respectively. Based on the decay patterns and potential energy surface calculations, including β6 deformation, a spin and parity of 6- has been assigned to the isomeric states in both nuclei. Collective observables are discussed in light of the systematics of the region, giving insight into nuclear shape evolution. The decrease in the ground-band energies of Gd166 and Sm164 (N=102) compared to Gd164 and Sm162 (N=100), respectively, presents evidence for the predicted deformed shell closure at N=100.

  • Régis JM, Jolie J, Saed-Samii N, Warr N, Pfeiffer M, Blanc A, Jentschel M, Köster U, Mutti P, Soldner T, Simpson GS, Drouet F, Vancraeyenest A, De France G, Clément E, Stezowski O, Ur CA, Urban W, Regan PH, Podolyák Z, Larijani C, Townsley C, Carroll R, Wilson E, Fraile LM, Mach H, Paziy V, Olaizola B, Vedia V, Bruce AM, Roberts OJ, Smith JF, Kröll T, Hartig AL, Ignatov A, Ilieva S, Thürauf M, Lalkovski S, Ivanova D, Kisyov S, Korten W, Salsac MD, Zielińska M, Mərginean N, Ghitə DG, Licə R, Petrache CM, Astier A, Leguillon R. (2014) 'B(E2; 21+ → 01+) value in Kr 90'. Physical Review C - Nuclear Physics, 90 (6)
  • Nakhostin M, Podolyak Z, Regan PH. (2014) 'Digital processing of signals from LaBr3:Ce scintillation detectors'. IOP PUBLISHING LTD JOURNAL OF INSTRUMENTATION, 9 Article number ARTN C12049
  • Wendt A, Taprogge J, Reiter P, Golubev P, Grawe H, Pietri S, Boutachkov P, Algora A, Ameil F, Bentley MA, Blazhev A, Bloor D, Bondili NS, Bowry M, Bracco A, Braun N, Camera F, Cederkäll J, Crespi F, De La Salle A, Dijulio D, Doornenbal P, Geibel K, Gellanki J, Gerl J, Grbosz J, Guastalla G, Habermann T, Hackstein M, Hoischen R, Jungclaus A, Merchán E, Million B, Morales A, Moschner K, Podolyák Z, Pietralla N, Ralet D, Reese M, Rudolph D, Scruton L, Siebeck B, Warr N, Wieland O, Wollersheim HJ. (2014) 'Isospin symmetry in the sd shell: Transition strengths in the neutron-deficient sd shell nucleus Ar 33'. Physical Review C - Nuclear Physics, 90 (5)

    Abstract

    © 2014 American Physical Society.Reduced transition strengths of the deexciting transitions from the first two excited states in Ar33 were measured in a relativistic Coulomb excitation experiment at the GSI Helmholtz center. The radioactive ion beam was produced by fragmentation of a primary Ar36 beam on a Be9 target followed by the selection of the reaction product of interest via the GSI Fragment Separator. The Ar33 beam hit a secondary Au197 target with an energy of approximately 145 MeV/nucleon. An array of high-purity germanium cluster detectors and large-volume BaF2 scintillator detectors were employed for γ-ray spectroscopy at the secondary target position. The Lund-York-Cologne Calorimeter was used to track the outgoing ions and to identify the nuclear reaction channels. For the two lowest energy excited states of Ar33 the reduced transition strengths have been determined. With these first results the Tz=-3/2 nucleus Ar33 is now, together with Na21 (Tz=-1/2), the only neutron-deficient odd-A sd shell nucleus in which experimental transition strengths are available. The experimental values are compared to results of shell-model calculations which describe simultaneously mirror-energy differences and transition-strength values of mirror pairs in the sd shell in a consistent way.

  • Régis JM, Simpson GS, Blanc A, De France G, Jentschel M, Köster U, Mutti P, Paziy V, Saed-Samii N, Soldner T, Ur CA, Urban W, Bruce AM, Drouet F, Fraile LM, Ilieva S, Jolie J, Korten W, Kröll T, Lalkovski S, Mach H, Mǎrginean N, Pascovici G, Podolyak Z, Regan PH, Roberts OJ, Smith JF, Townsley C, Vancraeyenest A, Warr N. (2014) 'Germanium-gated γ-γ Fast timing of excited states in fission fragments using the EXILL&FATIMA spectrometer'. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 763, pp. 210-220.
  • Taprogge J, Jungclaus A, Grawe H, Nishimura S, Xu ZY, Doornenbal P, Lorusso G, Nácher E, Simpson GS, Söderström PA, Sumikama T, Baba H, Browne F, Fukuda N, Gernhäuser R, Gey G, Inabe N, Isobe T, Jung HS, Kameda D, Kim GD, Kim YK, Kojouharov I, Kubo T, Kurz N, Kwon YK, Li Z, Sakurai H, Schaffner H, Steiger K, Suzuki H, Takeda H, Vajta Z, Watanabe H, Wu J, Yagi A, Yoshinaga K, Benzoni G, Bönig S, Chae KY, Coraggio L, Covello A, Daugas JM, Drouet F, Gadea A, Gargano A, Ilieva S, Kondev FG, Kröll T, Lane GJ, Montaner-Pizá A, Moschner K, Mücher D, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Wendt A. (2014) 'Identification of a millisecond isomeric state in Cd81129 via the detection of internal conversion and Compton electrons'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 738, pp. 223-227.
  • Gottardo A, Valiente-Dobón JJ, Benzoni G, Lunardi S, Gadea A, Algora A, Al-Dahan N, De Angelis G, Ayyad Y, Bazzacco D, Benlliure J, Boutachkov P, Bowry M, Bracco A, Bruce AM, Bunce M, Camera F, Casarejos E, Cortes ML, Crespi FCL, Corsi A, Denis Bacelar AM, Deo AY, Domingo-Pardo C, Doncel M, Engert T, Eppinger K, Farrelly GF, Farinon F, Farnea E, Geissel H, Gerl J, Goel N, Górska M, Grebosz J, Gregor E, Habermann T, Hoischen R, Janik R, John PR, Klupp S, Kojouharov I, Kurz N, Lenzi SM, Leoni S, Mandal S, Menegazzo R, Mengoni D, Million B, Modamio V, Morales AI, Napoli DR, Naqvi F, Nicolini R, Nociforo C, Pfützner M, Pietri S, Podolyák Z, Prochazka A, Prokopowicz W, Recchia F, Regan PH, Reed MW, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Swan TPD, Szarka I, Ur CA, Walker PM, Weick H, Wieland O, Wollersheim HJ. (2014) 'Isomeric decay spectroscopy of the Bi 217 isotope'. Physical Review C - Nuclear Physics, 90 (3)

    Abstract

    © 2014 American Physical Society.The structure of the neutron-rich bismuth isotope Bi217 has been studied for the first time. The fragmentation of a primary U238 beam at the FRS-RISING setup at GSI was exploited to perform γ-decay spectroscopy, since μs isomeric states were expected in this nucleus. Gamma rays following the decay of a t1/2=3 μs isomer were observed, allowing one to establish the low-lying structure of Bi217. The level energies and the reduced electric quadrupole transition probability B(E2) from the isomeric state are compared to large-scale shell-model calculations.

  • Grodner E, Gadea A, Sarriguren P, Lenzi SM, Grebosz J, Valiente-Dobón JJ, Algora A, Górska M, Regan PH, Rudolph D, de Angelis G, Agramunt J, Alkhomashi N, Amon Susam L, Bazzacco D, Benlliure J, Benzoni G, Boutachkov P, Bracco A, Caceres L, Cakirli RB, Crespi FC, Domingo-Pardo C, Doncel M, Dombrádi Z, Doornenbal P, Farnea E, Ganioğlu E, Gelletly W, Gerl J, Gottardo A, Hüyük T, Kurz N, Leoni S, Mengoni D, Molina F, Morales AI, Orlandi R, Oktem Y, Page RD, Perez D, Pietri S, Podolyák Z, Poves A, Quintana B, Rinta-Antila S, Rubio B, Nara Singh BS, Steer AN, Verma S, Wadsworth R, Wieland O, Wollersheim HJ. (2014) 'Hindered Gamow-Teller decay to the odd-odd N=Z (62)Ga: absence of proton-neutron T=0 condensate in A=62.'. Phys Rev Lett, United States: 113 (9)
  • John PR, Modamio V, Valiente-Dobón JJ, Mengoni D, Lunardi S, Rodríguez TR, Bazzacco D, Gadea A, Wheldon C, Alexander T, De Angelis G, Ashwood N, Barr M, Benzoni G, Birkenbach B, Bizzeti PG, Bizzeti-Sona AM, Bottoni S, Bowry M, Bracco A, Browne F, Bunce M, Camera F, Cederwall B, Corradi L, Crespi FCL, Désesquelles P, Eberth J, Farnea E, Fioretto E, Görgen A, Gottardo A, Grebosz J, Grente L, Hess H, Jungclaus A, Kokalova T, Korichi A, Korten W, Kuşoǧlu A, Lenzi S, Leoni S, Ljungvall J, Maron G, Meczynski W, Melon B, Menegazzo R, Michelagnoli C, Mijatović T, Million B, Molini P, Montagnoli G, Montanari D, Napoli DR, Nolan P, Oziol C, Podolyák Z, Pollarolo G, Pullia A, Quintana B, Recchia F, Reiter P, Roberts OJ, Rosso D, Şahin E, Salsac MD, Scarlassara F, Sferrazza M, Simpson J, Söderström PA, Stefanini AM, Stezowski O, Szilner S, Theisen C, Ur CA. (2014) 'Shape evolution in the neutron-rich osmium isotopes: Prompt γ-ray spectroscopy of Os 196'. Physical Review C - Nuclear Physics, 90 (2)

    Abstract

    The shape transition in the neutron-rich Os isotopes is studied by investigating the neutron-rich 196Os nucleus through in-beam γ-ray spectroscopy using a two-proton transfer reaction from a 198Pt target to a 82Se beam. The beam-like recoils were detected and identified with the large-acceptance magnetic spectrometer PRISMA, and the coincident γ rays were measured with the advanced gamma tracking array (AGATA) demonstrator. The de-excitation of the low-lying levels of the yrast-band of 196Os were identified for the first time. The results are compared with state-of-the-art beyond-mean-field calculations, performed for the even-even 188-198Os isotopes. The new results suggest a smooth transition in the Os isotopes from a more axial rotational behavior towards predominately vibrational nuclei through triaxial configurations. An almost perfect γ-unstable/triaxial rotor yrast band is predicted for 196Os which is in agreement with the experimentally measured excited states. © 2014 American Physical Society.

  • Watanabe H, Lorusso G, Nishimura S, Otsuka T, Ogawa K, Xu ZY, Sumikama T, Söderström PA, Doornenbal P, Li Z, Browne F, Gey G, Jung HS, Taprogge J, Vajta Z, Wu J, Yagi A, Baba H, Benzoni G, Chae KY, Crespi FC, Fukuda N, Gernhäuser R, Inabe N, Isobe T, Jungclaus A, Kameda D, Kim GD, Kim YK, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Lane GJ, Moon CB, Montaner-Pizá A, Moschner K, Naqvi F, Niikura M, Nishibata H, Nishimura D, Odahara A, Orlandi R, Patel Z, Podolyák Z, Sakurai H, Schaffner H, Simpson GS, Steiger K, Suzuki H, Takeda H, Wendt A, Yoshinaga K. (2014) 'Monopole-driven shell evolution below the doubly magic nucleus 132Sn explored with the long-lived isomer in 126Pd.'. Phys Rev Lett, United States: 113 (4)
  • Morales AI, Benlliure J, Kurtukián-Nieto T, Schmidt KH, Verma S, Regan PH, Podolyák Z, Górska M, Pietri S, Kumar R, Casarejos E, Al-Dahan N, Algora A, Alkhomashi N, Álvarez-Pol H, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Cáceres LS, Cullen IJ, Denis Bacelar AM, Doornenbal P, Estévez-Aguado ME, Farrelly G, Fujita Y, Garnsworthy AB, Gelletly W, Gerl J, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Lalkovski S, Liu Z, Mihai C, Molina F, Mücher D, Rubio B, Shaffner H, Steer SJ, Tamii A, Tashenov S, Valiente-Dobón JJ, Walker PM, Wollersheim HJ, Woods PJ. (2014) 'Half-life systematics across the N=126 shell closure: role of first-forbidden transitions in the β decay of heavy neutron-rich nuclei.'. Phys Rev Lett, United States: 113 (2)

    Abstract

    This Letter reports on a systematic study of β-decay half-lives of neutron-rich nuclei around doubly magic (208)Pb. The lifetimes of the 126-neutron shell isotone (204)Pt and the neighboring (200-202)Ir, (203)Pt, (204)Au are presented together with other 19 half-lives measured during the "stopped beam" campaign of the rare isotope investigations at GSI collaboration. The results constrain the main nuclear theories used in calculations of r-process nucleosynthesis. Predictions based on a statistical macroscopic description of the first-forbidden β strength reveal significant deviations for most of the nuclei with N<126. In contrast, theories including a fully microscopic treatment of allowed and first-forbidden transitions reproduce more satisfactorily the trend in the measured half-lives for the nuclei in this region, where the r-process pathway passes through during β decay back to stability.

  • Najem MA, Abolaban FA, Podolyák Z, Spyrou NM. (2014) 'Neutron production from flattening filter free high energy medical linac: A Monte Carlo study'. Radiation Physics and Chemistry,
    [ Status: Accepted ]
  • Niţǎ CR, Bucurescu D, Mǎrginean N, Avrigeanu M, Bocchi G, Bottoni S, Bracco A, Bruce AM, Cǎta-Danil G, Coló G, Deleanu D, Filipescu D, Ghiţǎ DG, Glodariu T, Leoni S, Mihai C, Mason PJR, Mǎrginean R, Negret A, Pantelicǎ D, Podolyak Z, Regan PH, Sava T, Stroe L, Toma S, Ur CA, Wilson E. (2014) 'Fast-timing lifetime measurements of excited states in Cu 67'. Physical Review C - Nuclear Physics, 89 (6)
  • Lalkovski S, Ivanova D, Stefanova EA, Korichi A, Petkov P, Kownacki J, Kutsarova T, Minkova A, Bazzacco D, Bergström M, Görgen A, Herskind B, Hübel H, Jansen A, Kisyov S, Khoo TL, Kondev FG, Lopez-Martens A, Podolyák Z, Schönwasser G, Yordanov O. (2014) 'Coexisting structures in Ru 105'. Physical Review C - Nuclear Physics, 89 (6)
  • Caballero-Folch R, Domingo-Pardo C, Cortès G, Taín JL, Agramunt J, Algora A, Ameil F, Ayyad Y, Benlliure J, Bowry M, Calviño F, Cano-Ott D, Davinson T, Dillmann I, Estrade A, Evdokimov A, Faestermann T, Farinon F, Galaviz D, García-Ríos A, Geissel H, Gelletly W, Gernhäuser R, Gómez-Hornillos MB, Guerrero C, Heil M, Hinke C, Knöbel R, Kojouharov I, Kurcewicz J, Kurz N, Litvinov Y, Maier L, Marganiec J, Marta M, Martínez T, Montes F, Mukha I, Napoli DR, Nociforo C, Paradela C, Pietri S, Podolyák Z, Prochazka A, Rice S, Riego A, Rubio B, Schaffner H, Scheidenberger C, Smith K, Sokol E, Steiger K, Sun B, Takechi M, Testov D, Weick H, Wilson E, Winfield JS, Wood R, Woods PJ, Yeremin A. (2014) 'β-decay and β-delayed Neutron Emission Measurements at GSI-FRS Beyond N=126, for r-process Nucleosynthesis'. Nuclear Data Sheets, 120, pp. 81-83.
  • Alharbi T, Regan PH, Mǎrginean N, Podolyák Z, Bajoga A, Britton R, Bucurescu D, Deleanu D, Filipescu D, Ghitǎ D, Glodariu T, Mihai C, Mulholland K, Mǎrginean R, Negret A, Nita CR, Patel Z, Roberts OJ, Stroe L, Sava T, Townsley C, Zamfir NV. (2014) 'Sub-nanosecond Half-life Measurement of the Yrast Iπ=5- State in the N=78 Nucleus Ce58136 using Fast-timing Coincident Gamma-ray Spectroscopy'. Nuclear Data Sheets, 120, pp. 59-61.
  • Algora A, Valencia E, Taín JL, Jordan MD, Agramunt J, Rubio B, Estevez E, Molina F, Montaner A, Guadilla V, Fallot M, Porta A, Zakari-Issoufou AA, Bui VM, Rice S, Podolyák Z, Regan PH, Gelletly W, Bowry M, Mason P, Farrelly GF, Rissanen J, Eronen T, Moore I, Penttilä H, Äystö J, Eloma V, Hakala J, Jokinen A, Kolkinen V, Reponen M, Sonnenschein V, Cano-Ott D, Martínez T, Mendoza E, Garcia AR, Gomez-Hornillos MB, Gorlychev V, Caballero-Folch R, Kondev FG, Sonzogni AA. (2014) 'Total Absorption Study of Beta Decays Relevant for Nuclear Applications and Nuclear Structure'. Nuclear Data Sheets, 120, pp. 12-15.
  • Roberts OJ, Bruce AM, Regan PH, Podolyák Z, Townsley CM, Smith JF, Mulholland KF, Smith A. (2014) 'A LaBr3: Ce fast-timing array for DESPEC at FAIR'. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 748, pp. 91-95.
  • Agramunt J, García AR, Algora A, Äystö J, Caballero-Folch R, Calviño F, Cano-Ott D, Cortés G, Domingo-Pardo C, Eronen T, Gelletly W, Gómez-Hornillos MB, Hakala J, Jokinen A, Jordan D, Kankainen A, Kolkinen V, Martínez T, Mason PJ, Moore I, Penttilä H, Podolyák Z, Reponen M, Riego A, Rissanen J, Rubio B, Saastamoinen A, Tain JL, Valencia E. (2014) 'New Beta-delayed Neutron Measurements in the Light-mass Fission Group'. Nuclear Data Sheets, 120, pp. 74-77.
  • Vajta Z, Stanoiu M, Sohler D, Jansen GR, Azaiez F, Dombrádi Z, Sorlin O, Brown BA, Belleguic M, Borcea C, Bourgeois C, Dlouhy Z, Elekes Z, Fülöp Z, Grévy S, Guillemaud-Mueller D, Hagen G, Hjorth-Jensen M, Ibrahim F, Kerek A, Krasznahorkay A, Lewitowicz M, Lukyanov SM, Mandal S, Mayet P, Mrázek J, Negoita F, Penionzhkevich YE, Podolyák Z, Roussel-Chomaz P, Saint-Laurent MG, Savajols H, Sletten G, Timár J, Timis C, Yamamoto A. (2014) 'Excited states in the neutron-rich nucleus F 25'. Physical Review C - Nuclear Physics, 89 (5)
  • Muto S, Stone NJ, Bingham CR, Stone JR, Walker PM, Audi G, Gaulard C, Köster U, Nikolov J, Nishimura K, Ohtsubo T, Podolyak Z, Risegari L, Simpson GS, Veskovic M, Walters WB. (2014) 'Magnetic properties of Hf 177 and Hf 180 in the strong-coupling deformed model'. Physical Review C - Nuclear Physics, 89 (4)

    Abstract

    This paper reports NMR measurements of the magnetic dipole moments of two high-K isomers, the 37/2-, 51.4 m, 2740 keV state in Hf177 and the 8-, 5.5 h, 1142 keV state in Hf180 by the method of on-line nuclear orientation. Also included are results on the angular distributions of γ transitions in the decay of the Hf177 isotope. These yield high precision E2/M1 multipole mixing ratios for transitions in bands built on the 23/2+, 1.1 s, isomer at 1315 keV and on the 9/2+, 0.663 ns, isomer at 321 keV. The new results are discussed in the light of the recently reported finding of systematic dependence of the behavior of the gR parameter upon the quasiproton and quasineutron make up of high-K isomeric states in this region. © 2014 American Physical Society.

  • Taprogge J, Jungclaus A, Grawe H, Nishimura S, Doornenbal P, Lorusso G, Simpson GS, Söderström PA, Sumikama T, Xu ZY, Baba H, Browne F, Fukuda N, Gernhäuser R, Gey G, Inabe N, Isobe T, Jung HS, Kameda D, Kim GD, Kim YK, Kojouharov I, Kubo T, Kurz N, Kwon YK, Li Z, Sakurai H, Schaffner H, Steiger K, Suzuki H, Takeda H, Vajta Z, Watanabe H, Wu J, Yagi A, Yoshinaga K, Benzoni G, Bönig S, Chae KY, Coraggio L, Covello A, Daugas JM, Drouet F, Gadea A, Gargano A, Ilieva S, Kondev FG, Kröll T, Lane GJ, Montaner-Pizá A, Moschner K, Mücher D, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Wendt A. (2014) '1p3/2 proton-hole state in 132Sn and the shell structure along N = 82.'. Phys Rev Lett, United States: 112 (13)
  • Taprogge J, Jungclaus A, Grawe H, Nishimura S, Doornenbal P, Lorusso G, Simpson GS, Söderström PA, Sumikama T, Xu ZY, Baba H, Browne F, Fukuda N, Gernhäuser R, Gey G, Inabe N, Isobe T, Jung HS, Kameda D, Kim GD, Kim YK, Kojouharov I, Kubo T, Kurz N, Kwon YK, Li Z, Sakurai H, Schaffner H, Steiger K, Suzuki H, Takeda H, Vajta Z, Watanabe H, Wu J, Yagi A, Yoshinaga K, Benzoni G, Bönig S, Chae KY, Coraggio L, Covello A, Daugas JM, Drouet F, Gadea A, Gargano A, Ilieva S, Kondev FG, Kröll T, Lane GJ, Montaner-Pizá A, Moschner K, Mücher D, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Wendt A. (2014) '1p3/2 proton-hole state in Sn 132 and the shell structure along N=82'. Physical Review Letters, 112 (13)
  • Podolyak Z . (2014) 'Studies of exotic nuclei with advanced radiation detectors'. PERGAMON-ELSEVIER SCIENCE LTD Radiation Physics and Chemistry, 95, pp. 14-18.

    Abstract

    Contemporary key nuclear physics questions are introduced. The role of radiation detection in the study of exotic nuclei is illustrated with examples related to NuSTAR at the FAIR facility. The discussed detection systems include: Si-tracker for light charged particle detection, the AGATA gamma-ray tracking detector, diamond detectors for heavy ion measurements, the AIDA implantation and decay detector, and the LaBr3(Ce) fast-timing array. Due to technology transfer, applications related to radiation physics are expected to benefit from these developments.

  • Najem MA, Spyrou NM, Podolyák Z, Abolaban FA. (2014) 'The physical characteristics of the 15MV Varian Clinac 2100C unflattened beam'. Radiation Physics and Chemistry, 95, pp. 205-209.
  • Morales AI, Benzoni G, Gottardo A, Valiente-Dobón JJ, Blasi N, Bracco A, Camera F, Crespi FCL, Corsi A, Leoni S, Million B, Nicolini R, Wieland O, Gadea A, Lunardi S, Górska M, Regan PH, Podolyák Z, Pfützner M, Pietri S, Boutachkov P, Weick H, Grebosz J, Bruce AM, Núñez JA, Algora A, Al-Dahan N, Ayyad Y, Alkhomashi N, Allegro PRP, Bazzacco D, Benlliure J, Bowry M, Bunce M, Casarejos E, Cortes ML, Bacelar AMD, Deo AY, De Angelis G, Domingo-Pardo C, Doncel M, Dombradi Z, Engert T, Eppinger K, Farrelly GF, Farinon F, Farnea E, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Janik R, Klupp S, Kojouharov I, Kurz N, Mandal S, Menegazzo R, Mengoni D, Napoli DR, Naqvi F, Nociforo C, Prochazka A, Prokopowicz W, Recchia F, Ribas RV, Reed MW, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Swan TPD, Szarka I, Ur CA, Walker PM, Wollersheim HJ. (2014) 'β -decay studies of neutron-rich Tl, Pb, and Bi isotopes'. Physical Review C - Nuclear Physics, 89 (1)

    Abstract

    The fragmentation of relativistic uranium projectiles has been exploited at the Gesellschaft für Schwerionenforschung laboratory to investigate the β decay of neutron-rich nuclei just beyond 208Pb. This paper reports on β-delayed γ decays of 211-213Tl, 215Pb, and 215-219Bi de-exciting states in the daughters 211-213Pb, 215Bi, and 215-219Po. The resulting partial level schemes, proposed with the help of systematics and shell-model calculations, are presented. The role of allowed Gamow-Teller and first-forbidden β transitions in this mass region is discussed. © 2014 American Physical Society.

  • Abuhadi N, Bradley D, Katarey D, Podolyak Z, Sassi S. (2014) 'Investigation of the quantitative accuracy of 3D iterative reconstruction algorithms in comparison to filtered back projection method: A phantom study'. Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 9033
  • Valencia E, Algora A, Tain JL, Rice S, Agramunt J, Zakari-Issoufou AA, Äystö J, Bowry M, Bui VM, Caballero-Folch R, Cano-Ott D, Eloma V, Eronen T, Estevez E, Farrelly GF, Fallot M, Garcia A, Gelletly W, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Jordan MD, Kankainen A, Kondev FG, Martinez T, Mendoza E, Molina F, Moore I, Perez A, Podolyak Z, Penttilä H, Porta A, Regan PH, Rissanen J, Rubio B, Weber C. (2014) 'Gamma/neutron competition above the neutron separation energy in delayed neutron emitters'. EPJ Web of Conferences, 66
  • Wilson E, Podolyák Z, Fornal B, Janssens RVF, Bowry M, Bunce M, Carpenter MP, Chiara CJ, Cieplicka N, Deo AY, Dracoulis GD, Grawe H, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Reed MW, Regan PH, Rodríguez Triguero C, Szpak B, Walker PM, Zhu S. (2014) 'Study of 207Tl126 produced in deep-inelastic reactions'. EPJ Web of Conferences, 66

    Abstract

    Deep-inelastic collisions of a 208Pb beam on a 208Pb target were performed using the ATLAS accelerator at Argonne National Laboratory. The Gammasphere detector array was used for the detection of prompt and delayed gamma-rays of the reaction products.207Tl is one proton away from the 208Pb doubly-magic nucleus. Its low-energy level structure is dominated by the single proton-hole states πs1/2-1, πd3/2-1 and πh11/2-1. The 11/2- state is isomeric with T1/2 = 1.33(11) s. The reaction partner of 207Tl is 209Bi, which has arelatively well established level scheme compared to 207Tl. Cross-coincidences between these two nuclei were used to confirm or establish levels above the 11/2- isomeric state in 207Tl. These states are obtained via breaking of the neutron core. Angular correlation analysis was performed on known transitions in 208Pb, proving the applicability of this method for multipolarity assignment. © Owned by the authors, published by EDP Sciences, 2014.

  • Gómez-Hornillos MB, Rissanen J, Taín JL, Algora A, Kratz KL, Lhersonneau G, Pfeiffer B, Agramunt J, Cano-Ott D, Gorlychev V, Caballero-Folch R, Martínez T, Achouri L, Calvino F, Cortés G, Eronen T, García A, Parlog M, Podolyak Z, Pretel C, Valencia E. (2014) 'β-delayed neutron emission studies'. Hyperfine Interactions, 223 (1-3), pp. 185-194.
  • Guastalla G, Dijulio DD, Górska M, Cederkäll J, Boutachkov P, Golubev P, Pietri S, Grawe H, Nowacki F, Algora A, Ameil F, Arici T, Atac A, Bentley MA, Blazhev A, Bloor D, Brambilla S, Braun N, Camera F, Pardo CD, Estrade A, Farinon F, Gerl J, Goel N, Grbosz J, Habermann T, Hoischen R, Jansson K, Jolie J, Jungclaus A, Kojouharov I, Knoebel R, Kumar R, Kurcewicz J, Kurz N, Lalović N, Merchan E, Moschner K, Naqvi F, Singh BSN, Nyberg J, Nociforo C, Obertelli A, Pfützner M, Pietralla N, Podolyák Z, Prochazka A, Ralet D, Reiter P, Rudolph D, Schaffner H, Schirru F, Scruton L, Swaleh T, Taprogge J, Wadsworth R, Warr N, Weick H, Wendt A, Wieland O, Winfield JS, Wollersheim HJ. (2014) 'Analysis and results of the 104Sn Coulomb excitation experiment'. Journal of Physics: Conference Series, 533 (1)
  • Gottardo A, Valiente-Dobón JJ, Benzoni G, Gadea A, Lunardi S, Boutachkov P, Bruce AM, Górska M, Grebosz J, Pietri S, Podolyák Z, Pfützner M, Regan PH, Weick H, Núñez JA, Algora A, Al-Dahan N, De Angelis G, Ayyad Y, Alkhomashi N, Allegro PRP, Bazzacco D, Benlliure J, Bowry M, Bracco A, Bunce M, Camera F, Casarejos E, Cortes ML, Crespi FCL, Corsi A, Bacelar AMD, Deo AY, Domingo-Pardo C, Doncel M, Dombradi Z, Engert T, Eppinger K, Farrelly GF, Farinon F, Farnea E, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Janik R, John PR, Klupp S, Kojouharov I, Kurz N, Lenzi SM, Leoni S, Mandal S, Menegazzo R, Mengoni D, Million B, Modamio V, Morales AI, Napoli DR, Naqvi F, Nicolini R, Nociforo C, Prochazka A, Prokopowicz W, Recchia F, Ribas RV, Reed MW, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Swan TPD, Szarka I, Ur CA, Walker PM, Wieland O, Wollersheim HJ. (2014) 'New isomers in the neutron-rich region beyond 208Pb'. EPJ Web of Conferences, 66

    Abstract

    The region of neutron-rich nuclei beyond 208Pb has been very difficult to explore due to its high mass and exoticity. However, recent experimental improvements allowed one to perform a quite extended isomer decay spectroscopy of these nuclei. © Owned by the authors, published by EDP Sciences, 2014.

  • Modamio V, Valiente-Dobón JJ, Lunardi S, Lenzi SM, Gadea A, Mengoni D, Bazzacco D, Algora A, Bednarczyk P, Benzoni G, Birkenbach B, Bracco A, Bruyneel B, Bürger A, Chavas J, Corradi L, Crespi FCL, De Angelis G, Désesquelles P, De France G, Depalo R, Dewald A, Doncel M, Erduran MN, Farnea E, Fioretto E, Fransen C, Geibel K, Gottardo A, Görgen A, Habermann T, Hackstein M, Hess H, Hüyük T, John PR, Jolie J, Judson D, Jungclaus A, Karkour N, Kempley R, Leoni S, Melon B, Menegazzo R, Michelagnoli C, Mijatović T, Million B, Möller O, Montagnoli G, Montanari D, Nannini A, Napoli DR, Podolyak Z, Pollarolo G, Pullia A, Quintana B, Recchia F, Reiter P, Rosso D, Rother W, Sahin E, Salsac MD, Scarlassara F, Sieja K, Söderström PA, Stefanini AM, Stezowski O, Szilner S, Theisen C, Travers B, Ur CA. (2013) 'Lifetime measurements in neutron-rich 63,65Co isotopes using the AGATA demonstrator'. Physical Review C - Nuclear Physics, 88 (4)
  • Watanabe H, Lorusso G, Nishimura S, Xu ZY, Sumikama T, Söderström PA, Doornenbal P, Browne F, Gey G, Jung HS, Taprogge J, Vajta Z, Wu J, Yagi A, Baba H, Benzoni G, Chae KY, Crespi FCL, Fukuda N, Gernhäuser R, Inabe N, Isobe T, Jungclaus A, Kameda D, Kim GD, Kim YK, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Lane GJ, Li Z, Moon CB, Montaner-Pizá A, Moschner K, Naqvi F, Niikura M, Nishibata H, Nishimura D, Odahara A, Orlandi R, Patel Z, Podolyák Z, Sakurai H, Schaffner H, Simpson GS, Steiger K, Suzuki H, Takeda H, Wendt A, Yoshinaga K. (2013) 'Isomers in Pd128 and Pd126: Evidence for a Robust Shell Closure at the Neutron Magic Number 82 in Exotic Palladium Isotopes'. Physical Review Letters, 111 (15)
  • Mason P, Podolyak Z, Marginean N, Regan PH, Stevenson PD, Werner V, Alexander T, Algora A, Alharbi T, Bowry M, Britton R, Bruce A, Bucurescu D, Bunce M, Cata-Danil G, Cata-Danil I, Cooper N, Deleanu D, Delion D, Filipescu D, Gelletly W, Ghita D, Gheorghe I, Glodariu T, Ilie G, Ivanova D, Kisyov S, Lalkovski S, Lica R, Liddick S, Marginean R, Mihai C, Mulholland K, Nita C, Negret A, Pascu S, Rice S, Roberts O, Sava T, Smith J, Soederstroem P, Stroe L, Suliman G, Suvaila R, Toma S, Townsley C, Wilson E, Wood RT, Zhekova M, Zhou C. (2013) 'Half-life of the yrast 2(+) state in W-188: Evolution of deformation and collectivity in neutron-rich tungsten isotopes'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 88 (4) Article number 044301

    Abstract

    The half-life of the yrast I π = 2+ state in the neutron-rich nucleus 188W has been measured using fast-timing techniques with the HPGe and LaBr3:Ce array at the National Institute of Physics and Nuclear Engineering, Bucharest. The resulting value of t1/2 = 0.87(12) ns is equivalent to a reduced transition probability of B(E2; 2+ 1 → 0+ 1 ) = 85(12) W.u. for this transition. The B(E2; 2+ 1 → 0+ 1 ) is compared to neighboring tungsten isotopes and nuclei in the Hf, Os, and Pt isotopic chains. Woods-Saxon potential energy surface (PES) calculations have been performed for nuclei in the tungsten isotopic chain and predict prolate deformed minima with rapidly increasing γ softness for 184–192W and an oblate minimum for 194W.

  • Gottardo A, Valiente-Dobón JJ, Benzoni G, Gadea A, Lunardi S, Boutachkov P, Bruce AM, Górska M, Grebosz J, Pietri S, Podolyák Z, Pfützner M, Regan PH, Weick H, Alcántara Núñez J, Algora A, Al-Dahan N, de Angelis G, Ayyad Y, Alkhomashi N, Allegro PRP, Bazzacco D, Benlliure J, Bowry M, Bracco A, Bunce M, Camera F, Casarejos E, Cortes ML, Crespi FCL, Corsi A, Denis Bacelar AM, Deo AY, Domingo-Pardo C, Doncel M, Dombradi Z, Engert T, Eppinger K, Farrelly GF, Farinon F, Farnea E, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Janik R, John PR, Klupp S, Kojouharov I, Kurz N, Lenzi SM, Leoni S, Mandal S, Menegazzo R, Mengoni D, Million B, Modamio V, Morales AI, Napoli DR, Naqvi F, Nicolini R, Nociforo C, Prochazka A, Prokopowicz W, Recchia F, Ribas RV, Reed MW, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Swan TPD, Szarka I, Ur CA, Walker PM, Wieland O, Wollersheim HJ. (2013) 'New μs isomers in the neutron-rich 210Hg nucleus'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 725 (4-5), pp. 292-296.

    Abstract

    Neutron-rich nuclei in the lead region, beyond N=126, have been studied at the FRS-RISING setup at GSI, exploiting the fragmentation of a primary uranium beam. Two isomeric states have been identified in 210Hg: the 8+ isomer expected from the seniority scheme in the νg9/2 shell and a second one at low spin and low excitation energy. The decay strength of the 8+ isomer confirms the need of effective three-body forces in the case of neutron-rich lead isotopes. The other unexpected low-lying isomer has been tentatively assigned as a 3- state, although this is in contrast with theoretical expectations. © 2013 Elsevier B.V..

  • Bowry M, Podolyák Z, Pietri S, Kurcewicz J, Bunce M, Regan PH, Farinon F, Geissel H, Nociforo C, Prochazka A, Weick H, Al-Dahan N, Alkhomashi N, Allegro PRP, Benlliure J, Benzoni G, Boutachkov P, Bruce AM, Denis Bacelar AM, Farrelly GF, Gerl J, Górska M, Gottardo A, Grȩbosz J, Gregor N, Janik R, Knöbel R, Kojouharov I, Kubo T, Kurz N, Litvinov YA, Merchan E, Mukha I, Naqvi F, Pfeiffer B, Pfützner M, Plaß W, Pomorski M, Riese B, Ricciardi MV, Schmidt KH, Schaffner H, Scheidenberger C, Simpson EC, Sitar B, Spiller P, Stadlmann J, Strmen P, Sun B, Tanihata I, Terashima S, Valiente Dobón JJ, Winfield JS, Wollersheim HJ, Woods PJ. (2013) 'Population of high-spin isomeric states following fragmentation of 238U'. Physical Review C - Nuclear Physics, 88 (2)

    Abstract

    Isomeric ratios have been determined for 23 metastable states identified in A≈200 nuclei from Pt to Rn near the valley of stability following fragmentation of 238U. This includes high-spin states with angular momenta ranging from (39/2) to 25. The experimental results are discussed together with those of similar experiments performed in this mass region. Isomeric ratios are compared with theoretical predictions where the angular momentum of the fragment arises purely due to the angular momentum of nucleons removed from the projectile. The theoretical yield of low-spin states is generally overestimated. In these cases the assumption of 100% feeding of the isomer may require modification. However, the yield of high-spin isomeric states [Im ≥ (39/2)] is significantly underestimated and highlights the requirement for a more complete theoretical framework in relation to the generation of fragment angular momentum. The enhanced population of high-spin states reported here is advantageous to future studies involving isomeric beams at fragmentation facilities such as the Rikagaku Kenkyusho RI Beam Factory (Japan) and next-generation facilities at the Facility for Antiproton and Ion Research (Germany) and Facility for Rare Isotope Beams (USA). © 2013 American Physical Society.

  • Lalkovski S, Bruce AM, Bacelar AMD, Gorska M, Pietri S, Podolyak Z, Bednarczyk P, Caceres L, Casarejos E, Cullen IJ, Doornenbal P, Farrelly GF, Garnsworthy AB, Geissel H, Gelletly W, Gerl J, Grebosz J, Hinke C, Ilie G, Ivanova D, Jaworski G, Kisyov S, Kojouharov I, Kurz N, Minkov N, Myalski S, Palacz M, Petkov P, Prokopowicz W, Regan PH, Schaffner H, Steer S, Tashenov S, Walker PM, Wollersheim HJ. (2013) 'Submicrosecond isomer in Rh-117(45)72 and the role of triaxiality in its electromagnetic decay rate'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 88 (2) Article number ARTN 024302
  • Söderström PA, Lorusso G, Watanabe H, Nishimura S, Doornenbal P, Thiamova G, Browne F, Gey G, Jung HS, Sumikama T, Taprogge J, Vajta Z, Wu J, Xu ZY, Baba H, Benzoni G, Chae KY, Crespi FCL, Fukuda N, Gernhäuser R, Inabe N, Isobe T, Jungclaus A, Kameda D, Kim GD, Kim YK, Kojouharov I, Kondev FG, Kubo T, Kurz N, Kwon YK, Lane GJ, Li Z, Montaner-Pizá A, Moschner K, Naqvi F, Niikura M, Nishibata H, Odahara A, Orlandi R, Patel Z, Podolyák Z, Sakurai H, Schaffner H, Simpson GS, Steiger K, Suzuki H, Takeda H, Wendt A, Yagi A, Yoshinaga K. (2013) 'Shape evolution in 116,118Ru: Triaxiality and transition between the O(6) and U(5) dynamical symmetries'. Physical Review C - Nuclear Physics, 88 (2)

    Abstract

    116Ru and 118Ru have been studied via β-delayed γ-ray spectroscopy of nuclei produced in fragmentation reactions at the Radioactive Ion-Beam Factory (RIBF) facility. Level schemes with positive-parity states up to spin J=6 have been constructed. The results have been discussed in terms of the interacting boson model, the algebraic collective model, and total Routhian surfaces. We conclude that the very neutron-rich nuclei still show many features associated with triaxial γ-soft nuclei, represented by the O(6) symmetry, but are approaching a spherical structure, the U(5) symmetry, with increasing neutron number towards the N=82 shell closure. In 118Ru, hints of a shape transition in the ground state have been observed. © 2013 American Physical Society.

  • Morales AI, Benlliure J, Górska M, Grawe H, Verma S, Regan PH, Podolyák Z, Pietri S, Kumar R, Casarejos E, Algora A, Alkhomashi N, Álvarez-Pol H, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Cáceres LS, Cullen IJ, Denis Bacelar AM, Doornenbal P, Estévez-Aguado ME, Farrelly G, Fujita Y, Garnsworthy AB, Gelletly W, Gerl J, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Lalkovski S, Liu Z, Mihai C, Molina F, Mücher D, Prokopowicz W, Rubio B, Schaffner H, Steer SJ, Tamii A, Tashenov S, Valiente-Dobón JJ, Walker PM, Wollersheim HJ, Woods PJ. (2013) 'β-delayed γ-ray spectroscopy of 203,204Au and 200-202Pt'. Physical Review C - Nuclear Physics, 88 (1)

    Abstract

    The β decay of five heavy, neutron-rich nuclei, 203,204Pt and 200-202Ir, has been investigated following relativistic cold fragmentation reactions of lead projectiles using the FRS+RISING setup at GSI. This paper reports on the study of the low-lying states in the decay daughter nuclei 203,204Au and 200-202Pt. The characteristic γ rays for each nucleus have been determined using β-delayed γ-ray spectroscopy. Tentative level schemes, relative intensities, and apparent β feedings are provided. These data are compared with shell-model calculations, which indicate a substantial contribution to the total β strength from high-energy first-forbidden β-decay transitions in this mass region. © 2013 American Physical Society.

  • Denis Bacelar AM, Bruce AM, Podolyák Z, Al-Dahan N, Górska M, Lalkovski S, Pietri S, Ricciardi MV, Algora A, Alkhomashi N, Benlliure J, Boutachkov P, Bracco A, Calore E, Casarejos E, Cullen IJ, Deo AY, Detistov P, Dombradi Z, Domingo-Pardo C, Doncel M, Farinon F, Farrelly GF, Geissel H, Gelletly W, Gerl J, Goel N, Grȩbosz J, Hoischen R, Kojouharov I, Kurz N, Leoni S, Molina F, Montanari D, Morales AI, Musumarra A, Napoli DR, Nicolini R, Nociforo C, Prochazka A, Prokopowicz W, Regan PH, Rubio B, Rudolph D, Schmidt KH, Schaffner H, Steer SJ, Steiger K, Strmen P, Swan TPD, Szarka I, Valiente-Dobón JJ, Verma S, Walker PM, Weick H, Wollersheim HJ. (2013) 'The population of metastable states as a probe of relativistic-energy fragmentation reactions'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 723 (4-5), pp. 302-306.

    Abstract

    Isomeric ratios have been measured for high-spin states in Po84198,200,206,208, At85208,209,210,211, Rn86210,211,212,213,214, Fr87208,211,212,213,214, Ra88210,211,212,214,215, and Ac89215 following the projectile fragmentation of a 1 AGeV 238U beam by a 9Be target at GSI Helmholtzzentrum für Schwerionenforschung. The fragments were separated in the fragment separator (FRS) and identified by means of energy loss and time-of-flight techniques. They were brought to rest at the centre of the RISING gamma-ray detector array and intensities of gamma rays emitted in the decay of isomeric states with half-lives between 100 ns and 40 μs and spin values up to 55/2ℏ were used to obtain the corresponding isomeric ratios. The data are compared to theoretical isomeric ratios calculated in the framework of the abrasion-ablation model. Large experimental enhancements are obtained for high-spin isomers in comparison to expected values. © 2013 Elsevier B.V.

  • Guastalla G, Dijulio DD, Górska M, Cederkäll J, Boutachkov P, Golubev P, Pietri S, Grawe H, Nowacki F, Sieja K, Algora A, Ameil F, Arici T, Atac A, Bentley MA, Blazhev A, Bloor D, Brambilla S, Braun N, Camera F, Dombrádi ZS, Domingo Pardo C, Estrade A, Farinon F, Gerl J, Goel N, Grèbosz J, Habermann T, Hoischen R, Jansson K, Jolie J, Jungclaus A, Kojouharov I, Knoebel R, Kumar R, Kurcewicz J, Kurz N, Lalović N, Merchan E, Moschner K, Naqvi F, Nara Singh BS, Nyberg J, Nociforo C, Obertelli A, Pfützner M, Pietralla N, Podolyák Z, Prochazka A, Ralet D, Reiter P, Rudolph D, Schaffner H, Schirru F, Scruton L, Sohler D, Swaleh T, Taprogge J, Vajta Z, Wadsworth R, Warr N, Weick H, Wendt A, Wieland O, Winfield JS, Wollersheim HJ. (2013) 'Coulomb excitation of Sn104 and the strength of the Sn100 shell closure'. Physical Review Letters, 110 (17)
  • Chen L, Walker PM, Geissel H, Litvinov YA, Beckert K, Beller P, Bosch F, Boutin D, Caceres L, Carroll JJ, Cullen DM, Cullen IJ, Franzke B, Gerl J, Górska M, Jones GA, Kishada A, Knöbel R, Kozhuharov C, Kurcewicz J, Litvinov SA, Liu Z, Mandal S, Montes F, Münzenberg G, Nolden F, Ohtsubo T, Patyk Z, Plaß WR, Podolyák Z, Rigby S, Saito N, Saito T, Scheidenberger C, Simpson EC, Shindo M, Steck M, Sun B, Williams SJ, Weick H, Winkler M, Wollersheim HJ, Yamaguchi T. (2013) 'Direct observation of long-lived isomers in Bi212'. Physical Review Letters, 110 (12)

    Abstract

    Long-lived isomers in Bi212 have been studied following U238 projectile fragmentation at 670 MeV per nucleon. The fragmentation products were injected as highly charged ions into a storage ring, giving access to masses and half-lives. While the excitation energy of the first isomer of Bi212 was confirmed, the second isomer was observed at 1478(30) keV, in contrast to the previously accepted value of >1910 keV. It was also found to have an extended Lorentz-corrected in-ring half-life >30 min, compared to 7.0(3) min for the neutral atom. Both the energy and half-life differences can be understood as being due a substantial, though previously unrecognized, internal decay branch for neutral atoms. Earlier shell-model calculations are now found to give good agreement with the isomer excitation energy. Furthermore, these and new calculations predict the existence of states at slightly higher energy that could facilitate isomer deexcitation studies. © 2013 American Physical Society.

  • Lalkovski S, Bruce AM, Jungclaus A, Górska M, Pfützner M, Cáceres L, Naqvi F, Pietri S, Podolyák Z, Simpson GS, Andgren K, Bednarczyk P, Beck T, Benlliure J, Benzoni G, Casarejos E, Cederwall B, Crespi FCL, Cuenca-García JJ, Cullen IJ, Denis Bacelar AM, Detistov P, Doornenbal P, Farrelly GF, Garnsworthy AB, Geissel H, Gelletly W, Gerl J, Grebosz J, Hadinia B, Hellström M, Hinke C, Hoischen R, Ilie G, Jaworski G, Jolie J, Khaplanov A, Kisyov S, Kmiecik M, Kojouharov I, Kumar R, Kurz N, Maj A, Mandal S, Modamio V, Montes F, Myalski S, Palacz M, Prokopowicz W, Reiter P, Regan PH, Rudolph D, Schaffner H, Sohler D, Steer SJ, Tashenov S, Walker J, Walker PM, Weick H, Werner-Malento E, Wieland O, Wollersheim HJ, Zhekova M. (2013) 'Core-coupled states and split proton-neutron quasiparticle multiplets in 122-126Ag'. Physical Review C - Nuclear Physics, 87 (3)

    Abstract

    Neutron-rich silver isotopes were populated in the fragmentation of a 136Xe beam and the relativistic fission of 238U. The fragments were mass analyzed with the GSI Fragment Separator and subsequently implanted into a passive stopper. Isomeric transitions were detected by 105 high-purity germanium detectors. Eight isomeric states were observed in 122-126Ag nuclei. The level schemes of 122,123,125Ag were revised and extended with isomeric transitions being observed for the first time. The excited states in the odd-mass silver isotopes are interpreted as core-coupled states. The isomeric states in the even-mass silver isotopes are discussed in the framework of the proton-neutron split multiplets. The results of shell-model calculations, performed for the most neutron-rich silver nuclei are compared to the experimental data. © 2013 American Physical Society.

  • Wilson E, Podolyák Z, Fornal B, Janssens RVF, Bowry M, Bunce M, Carpenter MP, Chiara CJ, Cieplicka N, Deo AY, Dracoulis GD, Grawe H, Hoffman CR, Kempley RS, Kondev FG, Lane GJ, Lauritsen T, Reed MW, Regan PH, Rodríguez Triguero C, Szpak B, Walker PM, Zhu S. (2013) 'Core excitations across the neutron shell gap in 207Tl'. Acta Physica Polonica B, 44 (3), pp. 381-385.
  • Alharbi T, Regan PH, Mason PJR, Mǎrginean N, Podolyák Z, Bruce AM, Simpson EC, Algora A, Alazemi N, Britton R, Bunce MR, Bucurescu D, Cooper N, Deleanu D, Filipescu D, Gelletly W, Ghitǎ D, Glodariu T, Ilie G, Kisyov S, Lintott J, Lalkovski S, Liddick S, Mihai C, Mulholland K, Mǎrginean R, Negret A, Nakhostin M, Nita CR, Roberts OJ, Rice S, Smith JF, Stroe L, Sava T, Townsley C, Wilson E, Werner V, Zhekova M, Zamfir NV. (2013) 'Electromagnetic transition rates in the N=80 nucleus 58138Ce'. Physical Review C - Nuclear Physics, 87 (1)
  • Calinescu S, Cáceres L, Grévy S, Sohler D, Stanoiu M, Negoita F, Borcea C, Borcea R, Bowry M, Catford W, Dombradi Z, Franchoo S, Gillibert R, Thomas JC, Kuti I, Lukyanov S, Lepailleur A, Mrazek J, Niikura M, Podolyak Z, Petrone C, Penionzhkevich Y, Roger T, Rotaru F, Sorlin O, Stefan I, Vajta Z, Wilson E. (2013) 'Study of the neutron rich sulfure isotope 43S through intermediate energy Coulomb excitation'. Journal of Physics: Conference Series, 413 (1)
  • Gottardo A, Valiente-Dobón JJ, de Angelis G, Modamio V, Napoli DR, Sahin E, Lunardi S, John PR, Lenzi SM, Benzoni G, Bracco A, Camera F, Crespi FCL, Corsi A, Leoni S, Million B, Morales AI, Nicolini R, Wieland O, Gadea A, Algora A, Bazzacco D, Farnea E, Menegazzo R, Mengoni D, Recchia F, Ur CA, Boutachkov P, Górska M, Pietri S, Weick H, Cortes ML, Domingo-Pardo C, Engert T, Farinon F, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Kojouharov I, Kurz N, Naqvi F, Nociforo C, Prochazka A, Prokopowicz W, Schaffner H, Sharma A, Wollersheim H-J, Bruce AM, Bunce M, Denis Bacelar AM, Grebosz J, Podolyák Z, Regan PH, Al-Dahan N, Bowry M, Deo AY, Farrelly GF, Reed MW, Swan TPD, Walker PM, Pfützner M, Alcántara Núñez J, Ayyad Y, Benlliure J, Alkhomashi N, Allegro PRP, Ribas RV, Casarejos E, Doncel M, Dombradi Z, Eppinger K, Klupp S, Steiger K, Rudolph D, Janik R, Sitar B, Strmen P, Szarka I, Mandal S, Siwal D. (2013) 'New μs isomers in the neutron-rich Hg nucleus'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics,
  • Regan PH, Podolyák Z, Alharbi T, Mason PJR, Bruce AM, Townsley C, Roberts OJ, Mǎrginean N, Mǎrginean R, Ghitǎ D, Mullholland K, Smith JF, Britton R, Patel Z, Nakhostin M, Rice S, Wilson E, Alazemi N, Alkhomashi N, Bucurescu D, Cata-Danil G, Deleanu D, Filipescu D, Glodariu T, Cata-Danil I, Mihai C, Negret A, Nita CR, Sava T, Stroe L, Suliman G, Detistov P, Garg U, Bender PC, Algora A, Liddick S, Cooper N, Werner V, Lalkovski S, Kisyov S, Browne F, Söderström PA, Watanabe H, Sumikama T. (2013) 'Precision lifetime measurements using LaBr3detectors with stable and radioactive beams'. EPJ Web of Conferences, 63
  • Régis JM, Mach H, Simpson GS, Jolie J, Pascovici G, Saed-Samii N, Warr N, Bruce A, Degenkolb J, Fraile LM, Fransen C, Ghita DG, Kisyov S, Koester U, Korgul A, Lalkovski S, Mǎrginean N, Mutti P, Olaizola B, Podolyak Z, Regan PH, Roberts OJ, Rudigier M, Stroe L, Urban W, Wilmsen D. (2013) 'The generalized centroid difference method for picosecond sensitive determination of lifetimes of nuclear excited states using large fast-timing arrays'. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 726
  • Valencia E, Algora A, Tain JL, Rice S, Agramunt J, Zakari-Issoufou AA, Porta A, Fallot M, Jordan MD, Molina F, Estevez E, Bowry M, Bui VM, Caballero-Folch R, Cano-Ott D, Eloma V, Eronen T, Garcia A, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Kondev FG, Martinez T, Moore I, Rissanen J, Äystö J, Penttilä H, Kankainen A, Rubio B, Gelletly W, Perez A, Podolyak Z, Regan PH, Farrelly GF, Weber C, Mendoza E. (2013) 'Total absorption γ-ray spectroscopy of beta delayed neutron emitters'. AIP Conference Proceedings, 1541, pp. 161-162.
  • Caballero-Folch R, Domingo-Pardo C, Taín JL, Cortés G, Agramunt J, Algora A, Ameil F, Ayyad Y, Benlliure J, Bowry M, Calviño F, Cano-Ott D, Davinson T, Dillmann I, Estrade A, Evdokimov A, Faestermann T, Farinon F, Galaviz D, García-Rios A, Geissel H, Gelletly W, Gernhäuser R, Gómez-Hornillos MB, Guerrero C, Heil M, Hinke C, Knöbel R, Kojouharov I, Kurcewicz J, Kurz N, Litvinov Y, Maier L, Marganiec J, Marta M, Martínez T, Montes F, Mukha I, Napoli DR, Nociforo C, Paradela C, Pietri S, Podolyák Z, Prochazka A, Rice S, Riego A, Rubio B, Schaffner H, Scheidenberger C, Smith K, Sokol E, Steiger K, Sun B, Takechi M, Testov D, Weick H, Wilson E, Winfield JS, Wood R, Woods P, Yeremin A. (2013) 'β-delayed neutron emission measurements around the third r-process abundance peak'. AIP Conference Proceedings, 1541, pp. 137-139.
  • Denis Bacelar AM, Bruce AM, Podolyák Z, Al-Dahan N, Alkhomashi N, Cullen IJ, Deo AY, Farrelly GF, Gelletly W, Regan PH, Steer SJ, Swan TPD, Walker PM, Górska M, Pietri S, Ricciardi MV, Boutachkov P, Domingo-Pardo C, Farinon F, Geissel H, Gerl J, Goel N, Grȩbosz J, Hoischen R, Kojouharov I, Kurz N, Nociforo C, Prochazka A, Prokopowicz W, Schmidt K-H, Schaffner H, Weick H, Wollersheim HJ, Detistov P, Algora A, Molina F, Rubio B, Dombradi Z, Benlliure J, Morales AI, Verma S, Bracco A, Leoni S, Montanari D, Nicolini R, Calore E, Napoli DR, Valiente-Dobón JJ, Casarejos E, Doncel M, Rudolph D, Musumarra A, Steiger K, Strmen P, Szarka I, Lalkovski S. (2013) 'The population of metastable states as a probe of relativistic-energy fragmentation reactions'. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics,

    Abstract

    Isomeric ratios have been measured for high-spin states in Po, At, Rn, Fr, Ra, and Ac following the projectile fragmentation of a 1 A GeV U beam by a Be target at GSI Helmholtzzentrum für Schwerionenforschung. The fragments were separated in the fragment separator (FRS) and identified by means of energy loss and time-of-flight techniques. They were brought to rest at the centre of the RISING gamma-ray detector array and intensities of gamma rays emitted in the decay of isomeric states with half-lives between 100 ns and 40 μs and spin values up to 55 / 2 ℏ were used to obtain the corresponding isomeric ratios. The data are compared to theoretical isomeric ratios calculated in the framework of the abrasion-ablation model. Large experimental enhancements are obtained for high-spin isomers in comparison to expected values. © 2013 Elsevier B.V. All rights reserved.

  • Nakhostin M, Podolyak Z, Sellin PJ. (2013) 'Application of pulse-shape discrimination to coplanar CdZnTe detectors'. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 729, pp. 541-545.
  • Zakari-Issoufou AA, Porta A, Fallot M, Algora A, Tain JL, Valencia E, Rice S, Agramunt J, Äystö J, Bowry M, Bui VM, Caballero-Folch R, Cano-Ott D, Eloma V, Estévez E, Farrelly GF, Garcia A, Gelletly W, Gomez-Hornillos MB, Gorlychev V, Hakala J, Jokinen A, Jordan MD, Kankainen A, Kondev FG, Martinez T, Mendoza E, Molina F, Moore I, Perez A, Podolyak Z, Penttilä H, Regan PH, Rissanen J, Rubio B, Weber C. (2013) 'Measurement of fission products β decay properties using a total absorption spectrometer'. EPJ Web of Conferences, 62
  • Najem MA, Spyrou NM, Podolyák Z, Abolaban FA. (2013) 'The physical characteristics of the 15 MV Varian Clinac 2100C unflattened beam'. Radiation Physics and Chemistry,
  • Roberts OJ, Bruce AM, Patel Z, Podolyák Z, Regan PH, Townsley CM, Smith A, Mulholland KF, Smith JF. (2013) 'Development of a LaBr3(Ce) Fast-timing Array for FAIR'. EPJ Web of Conferences, 63
  • Reed MW, Walker PM, Cullen IJ, Litvinov YA, Shubina D, Dracoulis GD, Blaum K, Bosch F, Brandau C, Carroll JJ, Cullen DM, Deo AY, Detwiler B, Dimopoulou C, Dong GX, Farinon F, Geissel H, Haettner E, Heil M, Kempley RS, Knöbel R, Kozhuharov C, Kurcewicz J, Kuzminchuk N, Litvinov S, Liu Z, Mao R, Nociforo C, Nolden F, Plaß WR, Podolyak Z, Prochazka A, Scheidenberger C, Steck M, Stöhlker T, Sun B, Swan TPD, Trees G, Weick H, Winckler N, Winkler M, Woods PJ, Xu FR, Yamaguchi T. (2012) 'Long-lived isomers in neutron-rich Z=72 76 nuclides'. Physical Review C - Nuclear Physics, 86 (5)

    Abstract

    A study of neutron-rich isotopes in the A=185 region of the nuclear chart has uncovered long-lived (>1s) isomers in several isotopes of hafnium, tantalum, tungsten, rhenium, and osmium. The region was accessed via the use of projectile fragmentation with the UNILAC-SIS accelerators at GSI. Fragmentation products of 197Au were passed through the fragment separator (FRS) and injected into the experimental storage ring (ESR), where single-ion identifications could be made. Evidence is presented for isomers in 183,184 ,186Hf, 186,187Ta,186W, 190,192 ,194Re, and 195Os with excitation energies in the range of 0.13.0 MeV. The lightest of these nuclides have well deformed prolate shapes, while the heaviest are transitional and susceptible to shape changes. Their properties are interpreted with the help of multi-quasiparticle and potential-energy- surface calculations. ©2012 American Physical Society.

  • Soderstrom P-A, Recchia F, Nyberg J, Gadea A, Lenzi SM, Poves A, Atac A, Aydin S, Bazzacco D, Bednarczyk P, Bellato M, Birkenbach B, Bortolato D, Boston AJ, Boston HC, Bruyneel B, Bucurescu D, Calore E, Cederwall B, Charles L, Chavas J, Colosimo S, Crespi FCL, Cullen DM, de Angelis G, Desesquelles P, Dosme N, Duchene G, Eberth J, Farnea E, Filmer F, Gorgen A, Gottardo A, Grebosz J, Gulmini M, Hess H, Hughes TA, Jaworski G, Jolie J, Joshi P, Judson DS, Jungclaus A, Karkour N, Karolak M, Kempley RS, Khaplanov A, Korten W, Ljungvall J, Lunardi S, Maj A, Maron G, Meczynski W, Menegazzo R, Mengoni D, Michelagnoli C, Molini P, Napoli DR, Nolan PJ, Norman M, Obertelli A, Podolyak Z, Pullia A, Quintana B, Redon N, Regan PH, Reiter P, Robinson AP, Sahin E, Simpson J, Salsac MD, Smith JF, Stezowski O, Theisen C, Tonev D, Unsworth C, Ur CA, Valiente-Dobon JJ, Wiens A. (2012) 'High-spin structure in K-40'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 86 (5) Article number ARTN 054320
  • Kurcewicz J, Farinon F, Geissel H, Pietri S, Nociforo C, Prochazka A, Weick H, Winfield JS, Estradé A, Dillmann I, Evdokimov A, Gerl J, Gregor E, Kelić-Heil A, Knöbel R, Litvinov Y, Merchan E, Mukha I, Naqvi F, Pfützner M, Riese B, Ricciardi MV, Scheidenberger C, Spiller P, Stadlmann J, Terashima S, Winkler M, Farinon F, Geissel H, Prochazka A, Dillmann I, Evdokimov A, Riese B, Scheidenberger C, Sun B, Estradé A, Allegro PRP, Bail A, Bélier G, Taïeb J, Benlliure J, Benzoni G, Bunce M, Bowry M, Podolyák Z, Regan PH, Caballero-Folch R, Gottardo A, Valiente-Dobón JJ, Janik R, Sitar B, Strmen P, Szarka I, Kubo T, Terashima S, Litvinov Y, Merchan E, Naqvi F, Pfützner M, Pomorski M, Sun B, Woods P. (2012) 'Discovery and cross-section measurement of neutron-rich isotopes in the element range from neodymium to platinum with the FRS'. ELSEVIER SCIENCE BV Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 717 (4-5), pp. 371-375.

    Abstract

    Using the high-resolution performance of the fragment separator FRS at GSI we have discovered 60 new neutron-rich isotopes in the atomic number range of 60≥Z≥78. The new isotopes were unambiguously identified in reactions with a U238 beam impinging on a Be target at 1 GeV/nucleon. The production cross-section for the new isotopes have been measured down to the pico-barn level and compared with predictions of different model calculations. For elements above hafnium fragmentation is the dominant reaction mechanism which creates the new isotopes, whereas fission plays a dominant role for the production of the new isotopes up to thulium. © 2012 Elsevier B.V.

  • Gottardo A, Valiente-Dobón JJ, Benzoni G, Nicolini R, Gadea A, Lunardi S, Boutachkov P, Bruce AM, Górska M, Grebosz J, Pietri S, Podolyák Z, Pfützner M, Regan PH, Weick H, Alcántara Núñez J, Algora A, Al-Dahan N, De Angelis G, Ayyad Y, Alkhomashi N, Allegro PRP, Bazzacco D, Benlliure J, Bowry M, Bracco A, Bunce M, Camera F, Casarejos E, Cortes ML, Crespi FCL, Corsi A, Denis Bacelar AM, Deo AY, Domingo-Pardo C, Doncel M, Dombradi Z, Engert T, Eppinger K, Farrelly GF, Farinon F, Farnea E, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Janik R, Klupp S, Kojouharov I, Kurz N, Lenzi SM, Leoni S, Mandal S, Menegazzo R, Mengoni D, Million B, Morales AI, Napoli DR, Naqvi F, Nociforo C, Prochazka A, Prokopowicz W, Recchia F, Ribas RV, Reed MW, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Swan TPD, Szarka I, Ur CA, Walker PM, Wieland O, Wollersheim HJ, Nowacki F, Maglione E, Zuker AP. (2012) 'New isomers in the full seniority scheme of neutron-rich lead isotopes: The role of effective three-body forces'. Physical Review Letters, 109 (16)

    Abstract

    The neutron-rich lead isotopes, up to Pb216, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands the introduction of effective three-body interactions and two-body transition operators in the conventional neutron valence space beyond Pb208. © 2012 American Physical Society.

  • Nara Singh BS, Brock TS, Wadsworth R, Grawe H, Boutachkov P, Braun N, Blazhev A, Liu Z, Górska M, Pietri S, Rudolph D, Domingo-Pardo C, Steer SJ, Ataç A, Bettermann L, Cáceres L, Engert T, Faestermann T, Farinon F, Finke F, Geibel K, Gerl J, Gernhäuser R, Goel N, Gottardo A, Grȩbosz J, Hinke C, Hoischen R, Ilie G, Iwasaki H, Jolie J, Kaşkaş A, Kojouharov I, Krücken R, Kurz N, Merchán E, Nociforo C, Nyberg J, Pfützner M, Prochazka A, Podolyák Z, Regan PH, Reiter P, Rinta-Antila S, Scholl C, Schaffner H, Söderström PA, Warr N, Weick H, Wollersheim HJ, Woods PJ, Nowacki F. (2012) 'Influence of the np interaction on the β decay of 94Pd'. Physical Review C - Nuclear Physics, 86 (4)
  • Swan TPD, Walker PM, Podolyák Z, Reed MW, Dracoulis GD, Lane GJ, Kibédi T, Smith ML. (2012) 'Hindered decays from a non-yrast four-quasiparticle isomer in 164Er'. Physical Review C - Nuclear Physics, 86 (4)

    Abstract

    The half-life of a Kπ=12 + isomer in 164Er has been measured to be 68(2) ns, and new decay pathways have been identified. These include highly K-forbidden γ-ray transitions directly to the ground-state rotational band, with reduced hindrance values that can be compared with those found for heavier nuclides. The new data support the interpretation that the level density is a key variable in determining K-forbidden transition rates. © 2012 American Physical Society.

  • Stefanova EA, Lalkovski S, Korichi A, Kutsarova T, Lopez-Martens A, Xu FR, Liu HL, Kisyov S, Minkova A, Bazzacco D, Bergström M, Görgen A, Hannachi F, Herskind B, Hübel H, Jansen A, Khoo TL, Podolyák Z, Schönwasser G. (2012) 'Observation of positive-parity bands in 109Pd and 111Pd: Enhanced γ softness'. Physical Review C - Nuclear Physics, 86 (4)
  • Nociforo C, Farinon F, Bosch F, Boutin D, Geissel H, Knöbel R, Kojouharov I, Kozhuharov C, Kurcewicz J, Litvinov YA, Nolden F, Pietri S, Prochazka A, Sanjari MS, Scheidenberger C, Weick H, Winfield JS, Winkler M, Wollersheim HJ, Farinon F, Geissel H, Prochazka A, Scheidenberger C, Sun B, Musumarra A, Del Zoppo A, Figuera P, Fisichella M, Pellegriti MG, Scuderi V, Torresi D, Musumarra A, Kuboki T, Suzuki T, Yamaguchi T, Mazzocco M, Winckler N, Motizuki Y, Ohstubo T, Ohkuma Y, Patyk Z, Podolyak Z. (2012) 'Measurements of α-decay half-lives at GSI'. Physica Scripta, (T150)
  • Hinke CB, Boehmer M, Boutachkov P, Faestermann T, Geissel H, Gerl J, Gernhaeuser R, Gorska M, Gottardo A, Grawe H, Grebosz JL, Kruecken R, Kurz N, Liu Z, Maier L, Nowacki F, Pietri S, Podolyak Z, Sieja K, Steiger K, Straub K, Weick H, Wollersheim H-J, Woods PJ, Al-Dahan N, Alkhomashi N, Atac A, Blazhev A, Braun NF, Celikovic IT, Davinson T, Dillmann I, Domingo-Pardo C, Doornenbal PC, de France G, Farrelly GF, Farinon F, Goel N, Habermann TC, Hoischen R, Janik R, Karny M, Kaskas A, Kojouharov IM, Kroell T, Litvinov Y, Myalski S, Nebel F, Nishimura S, Nociforo C, Nyberg J, Parikh AR, Prochazka A, Regan PH, Rigollet C, Schaffner H, Scheidenberger C, Schwertel S, Soederstroem P-A, Steer SJ, Stolz A, Strmen P. (2012) 'Superallowed Gamow-Teller decay of the doubly magic nucleus Sn-100'. NATURE PUBLISHING GROUP NATURE, 486 (7403), pp. 341-345.
  • Mason PJR, Alharbi T, Regan PH, Marginean N, Podolyak Z, Simpson EC, Alkhomashi N, Bender PC, Bowry M, Bostan M, Bucurescu D, Bruce AM, Cata-Danil G, Cata-Danil I, Chakrabarti R, Deleanu D, Detistov P, Erduran MN, Filipescu D, Garg U, Glodariu T, Ghita D, Ghugre SS, Kusoglu A, Marginean R, Mihai C, Nakhostin M, Negret A, Pascu S, Triguero CR, Sava T, Sinha AK, Stroe L, Suliman G, Zamfir NV. (2012) 'Half-life of the I-pi=4(-) intruder state in P-34: M2 transition strengths approaching the island of inversion'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 85 (6) Article number ARTN 064303
  • Swan TPD, Walker PM, Podolyak Z, Reed MW, Dracoulis GD, Lane GJ, Kibedi T, Smith ML. (2012) 'Discovery of isomers in dysprosium, holmium, and erbium isotopes with N=94 to 97'. PHYSICAL REVIEW C, 85 (2) Article number ARTN 024313
  • Stanoiu M, Sohler D, Sorlin O, Dombradi Z, Azaiez F, Brown BA, Borcea C, Bourgeois C, Elekes Z, Fueloep Z, Grevy S, Guillemaud-Mueller D, Ibrahim F, Kerek A, Krasznahorkay A, Lewitowicz M, Lukyanov SM, Mrazek J, Negoita F, Penionzhkevich Y-E, Podolyak Z, Porquet MG, Roussel-Chomaz P, Saint-Laurent MG, Savajols H, Sletten G, Timar J, Timis C. (2012) 'Spectroscopy of F-26'. PHYSICAL REVIEW C, 85 (1) Article number ARTN 017303
  • Mason PJR, Alharbi T, Regan PH, Mrginean N, Podolyàk Z, Alkhomashi N, Bender PC, Bowry M, Bostan M, Bucurescu D, Bruce AM, Cta-Danil G, Cta-Danil I, Chakrabarti R, Deleanu D, Detistov P, Erduran MN, Filipescu D, Garg U, Glodariu T, Ghiţ D, Ghugre SS, Kusoglu A, Mrginean R, Mihai C, Nakhostin M, Negret A, Pascu S, Triguero CR, Sava T, Simpson EC, Sinha AK, Stroe L, Suliman G, Zamfir NV. (2012) 'Half-life of the I π 4 - intruder state in 34P using LaBr 3:Ce fast timing'. Journal of Physics: Conference Series, 381 (1)
  • Chen L, Plaß WR, Geissel H, Knöbel R, Kozhuharov C, Litvinov Y, Patyk Z, Scheidenberger C, Siegień-Iwaniuk K, Sun B, Weick H, Beckert K, Beller P, Bosch F, Boutin D, Caceres L, Carroll JJ, Cullen DM, Cullen IJ, Franzke B, Gerl J, Górska M, Jones GA, Kishada A, Kurcewicz J, Litvinov SA, Liu Z, Mandal S, Montes F, Münzenberg G, Nolden F, Ohtsubo T, Podolyák Z, Propri R, Rigby S, Saito N, Saito T, Shindo M, Steck M, Walker PM, Williams S, Winkler M, Wollersheim H-J, Yamaguchi T. (2012) 'New results on mass measurements of stored neutron-rich nuclides in the element range from Pt to U with the FRS-ESR facility at 360-400MeV/u'. Elsevier Nuclear Physics A, 882, pp. 71-89.

    Abstract

    Masses of 238U projectile fragments have been measured with time-resolved Schottky Mass Spectrometry (SMS) at the FRS-ESR facility at GSI. The exotic nuclei were created in the production target at the entrance of the fragment separator FRS, spatially separated in flight and injected into the storage-cooler ring ESR at about 70% light velocity. This means the ions were mainly bare or carried only a few electrons, e.g., the population of Li-like ions was below 1% for Pt fragments. Accurate newmass values of 33 neutron-rich, stored exotic nuclei in the element range from platinum to uranium have been obtained for the first time. In total more than 150 nuclides including references with well-known masses have been covered in this large-area SMS measurement. A novel data analysis has been applied which reduces the systematic errors by taking into account the velocity profile of the cooler electrons and the residual ion-optical dispersion in this part of the storage ring. The experiment, the data analysis, and the mass values are presented. The experimental data are compared with theoretical predictions demonstrating systematic deviations of up to 1500 keV from modern mass models.

  • Al-Dahan N, Regan PH, Podolyák Z, Walker PM, Alkhomashi N, Dracoulis GD, Farrelly G, Benlliure J, Pietri SB, Casten RF, Stevenson PD, Gelletly W, Steer SJ, Garnsworthy AB, Casarejos E, Gerl J, Wollersheim HJ, Grebosz J, Górska M, Kojouharov I, Schaffner H, Algora A, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Cullen IJ, Denis Bacelar AM, Deo AY, Estevez ME, Fujita Y, Hoischen R, Kumar R, Lalkovski S, Liu Z, Mason PJ, Mihai C, Molina F, Mücher D, Rubio B, Tamii A, Tashenov S, Valiente-Dobón JJ, Woods PJ. (2012) 'Multiple β - Decaying states in 194Re: Shape evolution in neutron-rich osmium isotopes'. American Physical Society Physical Review C - Nuclear Physics, 85 (3) Article number 034301

    Abstract

    decays from heavy, neutron-rich nuclei with A∼190 have been investigated following their production via the relativistic projectile fragmentation of an E/A=1 GeV 208Pb primary beam on a ∼2.5 g/cm2 9Be target. The reaction products were separated and identified using the GSI FRagment Separator (FRS) and stopped in the RISING active stopper. γ decays were observed and correlated with these secondary ions on an event-by-event basis such that γ-ray transitions following from both internal (isomeric) and β decays were recorded. A number of discrete, β-delayed γ-ray transitions associated with β decays from 194Re to excited states in 194Os have been observed, including previously reported decays from the yrast Iπ=(6+) state. Three previously unreported γ-ray transitions with energies 194, 349, and 554 keV are also identified; these transitions are associated with decays from higher spin states in 194Os. The results of these investigations are compared with theoretical predictions from Nilsson multi-quasiparticle (MQP) calculations. Based on lifetime measurements and the observed feeding pattern to states in 194Os, it is concluded that there are three β−-decaying states in 194Re.

  • Benzoni G, Morales AI, Bracco A, Camera F, Crespi FCL, Corsi AM, Leoni S, Million B, Nicolini R, Wieland O, Valiente-Dobón JJ, Gottardo A, de Angelis G, Napoli DR, Sahin E, Gottardo A, Lunardi S, Bracco A, Camera F, Crespi FCL, Corsi AM, Leoni S, Nicolini R, Gadea A, Algora A, Lunardi S, Bazzacco D, Farnea E, Menegazzo R, Mengoni D, Recchia F, Ur CA, Boutachkov P, Górska M, Pietri S, Weick H, Cortes ML, Domingo-Pardo C, Engert T, Farinon F, Geissel H, Gerl J, Goel N, Gregor E, Habermann T, Hoischen R, Kojouharov I, Kurz N, Naqvi F, Nociforo C, Prochazka A, Prokopowicz W, Schaffner H, Sharma A, Wollersheim H-J, Bruce AM, Denis Bacelar AM, Grebosz J, Podolyak Z, Regan PH, Al-Dahan N, Bowry M, Bunce M, Deo AY, Farrelly GF, Reed MW, Swan TPD, Walker PM, Pfützner M, Alcántara Núñez J, Ayyad Y, Benlliure J, Alkhomashi N, Allegro PRP, Ribas RV, Casarejos E, Doncel M, Dombradi Z, Eppinger K, Klupp S, Steiger K, Hoischen R, Rudolph D, Janik R, Sitar B, Strmen P, Szarka I, Mandal S, Siwal D, Naqvi F, Corsi AM, Al-Dahan N, Walker PM. (2012) 'First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes'. Elsevier Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 715 (4-5), pp. 293-297.

    Abstract

    Neutron-rich isotopes around lead, beyond N= 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time β-decay half-lives of Bi and Tl isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei. © 2012 Elsevier B.V.

  • Gómez-Hornillos MB, Gorlychev V, Caballero-Folch R, Calvino F, Cortés G, Pretel C, Rissanen J, Eronen T, Taín JL, Algora A, Agramunt J, Valencia E, Kratz KL, Lhersonneau G, Pfeiffer B, Cano-Ott D, Martínez T, García A, Achouri L, Parlog M, Podolyak Z. (2012) 'β-delayed neutron emission studies'. Hyperfine Interactions, , pp. 1-10.
  • Wadsworth R, Singh BSN, Liu Z, Grawe H, Brock TS, Boutachkov P, Braun N, Blazhev A, Gorska M, Pietri S, Rudolph D, Domingo-Pardo C, Steer SJ, Atac A, Bettermann L, Caceres L, Eppinger K, Engert T, Faestermann T, Farinon F, Finke F, Geibel K, Gerl J, Gernhauser R, Goel N, Gottardo A, Grebosz J, Hinke C, Hoischen R, Ilie G, Iwasaki H, Jolie J, Kaskas A, Kojouharov I, Krucken R, Kurz N, Merchan E, Nociforo C, Nyberg J, Pfutzner M, Prochazka A, Podolyak Z, Regan PH, Reiter P, Rinta-Antila S, Scholl C, Schaffner H, Soderstrom PA, Warr N, Weick H, Wollersheim HJ, Woods PJ, Nowacki F, Sieja K. (2012) 'Spin-gap isomer in 96Cd'. Journal of Physics: Conference Series, 381 (1)
  • Alharbi T, Mason PJ, Regan PH, Podolyák Z, Mărginean N, Nakhostin M, Bowry M, Bucurescu D, Căta-Danil G, Căta-Danil I, Deleanu D, Filipescu D, Glodariu T, Ghiţă D, Mărginean R, Mihai C, Negret A, Pascu S, Sava T, Stroe L, Suliman G, Zamfir NV, Bruce AM, Rodriguez Triguero C, Bender PC, Garg U, Erduran MN, Kusoglu A, Bostan M, Detistov P, Alkhomashi N, Sinha AK, Chakrabarti R, Ghugre SS. (2012) 'Gamma-ray fast-timing coincidence measurements from the (18)O+(18)O fusion-evaporation reaction using a mixed LaBr(3)-HPGe array'. Elsevier Appl Radiat Isot, 70 (7), pp. 1337-1339.

    Abstract

    We report on a gamma-ray coincidence analysis using a mixed array of hyperpure germanium and cerium-doped lanthanum tri-bromide (LaBr(3):Ce) scintillation detectors to study nuclear electromagnetic transition rates in the pico-to-nanosecond time regime in (33,34)P and (33)S following fusion-evaporation reactions between an (18)O beam and an isotopically enriched (18)O implanted tantalum target. Energies from decay gamma-rays associated with the reaction residues were measured in event-by-event coincidence mode, with the measured time difference information between the pairs of gamma-rays in each event also recorded using the ultra-fast coincidence timing technique. The experiment used the good full-energy peak resolution of the LaBr(3):Ce detectors coupled with their excellent timing responses in order to determine the excited state lifetime associated with the lowest lying, cross-shell, I(π)=4(-) "intruder" state previously reported in the N=19 isotone (34)P. The extracted lifetime is consistent with a mainly single-particle M2 multipolarity associated with a f(7/2)→d(5/2) single particle transition.

  • Akkoyun S, Algora A, Alikhani B, Ameil F, De Angelis G, Arnold L, Astier A, Ataç A, Aubert Y, Aufranc C, Austin A, Aydin S, Azaiez F, Badoer S, Balabanski DL, Barrientos D, Baulieu G, Baumann R, Bazzacco D, Beck FA, Beck T, Bednarczyk P, Bellato M, Bentley MA, Benzoni G, Berthier R, Berti L, Beunard R, Lo Bianco G, Birkenbach B, Bizzeti PG, Bizzeti-Sona AM, Le Blanc F, Blasco JM, Blasi N, Bloor D, Boiano C, Borsato M, Bortolato D, Boston AJ, Boston HC, Bourgault P, Boutachkov P, Bouty A, Bracco A, Brambilla S, Brawn IP, Brondi A, Broussard S, Bruyneel B, Bucurescu D, Burrows I, Bürger A, Cabaret S, Cahan B, Calore E, Camera F, Capsoni A, Carrió F, Casati G, Castoldi M, Cederwall B, Cercus J-L, Chambert V, El Chambit M, Chapman R, Charles L, Chavas J, Clément E, Cocconi P, Coelli S, Coleman-Smith PJ, Colombo A, Colosimo S, Commeaux C, Conventi D, Cooper RJ, Corsi A, Cortesi A, Costa L, Crespi FCL, Cresswell JR, Cullen DM, Curien D, Czermak A, Delbourg D, Depalo R, Descombes T, Désesquelles P, Detistov P, Diarra C, Didierjean F, Dimmock MR, Doan QT, Domingo-Pardo C, Doncel M, Dorangeville F, Dosme N, Drouen Y, Duchêne G, Dulny B, Eberth J, Edelbruck P, Egea J, Engert T, Erduran MN, Ertürk S, Fanin C, Fantinel S, Farnea E, Faul T, Filliger M, Filmer F, Finck C, De France G, Gadea A, Gast W, Geraci A, Gerl J, Gernhäuser R, Giannatiempo A, Giaz A, Gibelin L, Givechev A, Goel N, González V, Gottardo A, Grave X, Grȩbosz J, Griffiths R, Grint AN, Gros P, Guevara L, Gulmini M, Görgen A, Ha HTM, Habermann T, Harkness LJ, Harroch H, Hauschild K, He C, Hernández-Prieto A, Hervieu B, Hess H, Hüyük T, Ince E, Isocrate R, Jaworski G, Johnson A, Jolie J, Jones P, Jonson B, Joshi P, Judson DS, Jungclaus A, Kaci M, Karkour N, Karolak M, Kaşkaş A, Kebbiri M, Kempley RS, Khaplanov A, Klupp S, Kogimtzis M, Kojouharov I, Korichi A, Korten W, Kröll T, Krücken R, Kurz N, Ky BY, Labiche M, Lafay X, Lavergne L, Lazarus IH, Leboutelier S, Lefebvre F, Legay E, Legeard L, Lelli F, Lenzi SM, Leoni S, Lermitage A, Lersch D, Leske J, Letts SC, Lhenoret S, Lieder RM, Linget D, Ljungvall J, Lopez-Martens A, Lotodé A, Lunardi S, Maj A, Van Der Marel J, Mariette Y, Marginean N, Marginean R, Maron G, Mather AR, Mȩczyński W, Mendéz V, Medina P, Melon B, Menegazzo R, Mengoni D, Merchan E, Mihailescu L, Michelagnoli C, Mierzejewski J, Milechina L, Million B, Mitev K, Molini P, Montanari D, Moon S, Morbiducci F, Moro R, Morrall PS, Möller O, Nannini A, Napoli DR, Nelson L, Nespolo M, Ngo VL, Nicoletto M, Nicolini R, Le Noa Y, Nolan PJ, Norman M, Nyberg J, Obertelli A, Olariu A, Orlandi R, Oxley DC, Özben C, Ozille M, Oziol C, Pachoud E, Palacz M, Palin J, Pancin J, Parisel C, Pariset P, Pascovici G, Peghin R, Pellegri L, Perego A, Perrier S, Petcu M, Petkov P, Petrache C, Pierre E, Pietralla N, Pietri S, Pignanelli M, Piqueras I, Podolyak Z, Le Pouhalec P, Pouthas J, Pugnére D, Pucknell VFE, Pullia A, Quintana B, Raine R, Rainovski G, Ramina L, Rampazzo G, La Rana G, Rebeschini M, Recchia F, Redon N, Reese M, Reiter P, Regan PH, Riboldi S, Richer M, Rigato M, Rigby S, Ripamonti G, Robinson AP, Robin J, Roccaz J, Ropert J-A, Rossé B, Rossi Alvarez C, Rosso D, Rubio B, Rudolph D, Saillant F, Şahin E, Salomon F, Salsac M-D, Salt J, Salvato G, Sampson J, Sanchis E, Santos C, Schaffner H, Schlarb M, Scraggs DP, Seddon D, Şenyiǧit M, Sigward M-H, Simpson G, Simpson J, Slee M, Smith JF, Sona P, Sowicki B, Spolaore P, Stahl C, Stanios T, Stefanova E, Stézowski O, Strachan J, Suliman G, Söderström P-A, Tain JL, Tanguy S, Tashenov S, Theisen C, Thornhill J, Tomasi F, Toniolo N, Touzery R, Travers B, Triossi A, Tripon M, Tun-Lanoë KMM, Turcato M, Unsworth C, Ur CA, Valiente-Dobon JJ, Vandone V, Vardaci E, Venturelli R, Veronese F, Veyssiere C, Viscione E, Wadsworth R, Walker PM, Warr N, Weber C, Weisshaar D, Wells D, Wieland O, Wiens A, Wittwer G, Wollersheim HJ, Zocca F, Zamfir NV, Ziȩbliński M, Zucchiatti A. (2012) 'AGATA - Advanced GAmma Tracking Array'. Elsevier Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 668, pp. 26-58.
  • Cáceres L, Sohler D, Grévy S, Sorlin O, Dombrádi Z, Bastin B, Achouri NL, Angélique JC, Azaiez F, Baiborodin D, Borcea R, Bourgeois C, Buta A, Bürger A, Chapman R, Dalouzy JC, Dlouhy Z, Drouard A, Elekes Z, Franchoo S, Gaudefroy L, Iacob S, Laurent B, Lazar M, Liang X, Liénard E, Mrazek J, Nalpas L, Negoita F, Nowacki F, Orr NA, Penionzhkevich Y, Podolyák Z, Pougheon F, Poves A, Roussel-Chomaz P, Saint-Laurent MG, Stanoiu M, Stefan I. (2012) 'In-beam spectroscopic studies of the 44S nucleus'. American Physical Society Physical Review C - Nuclear Physics, 85 (2) Article number 024311
  • Myalski S, Maj A, Podolyák Z, Kmiecik M, Bednarczyk P, Grebosz J, Regan PH, Garnsworthy AB, Pietri S, Rudolph D, Steer SJ, Becker F, Gerl J, Górska M, Grawe H, Kojouharov I, Schaffner H, Wollersheim HJ, Prokopowicz W, Benzoni G, Blank B, Brandau C, Bruce AM, Cáceres L, Camera F, Catford WN, Cullen IJ, Dombradi Z, Doornenbal P, Estevez E, Geissel H, Gelletly W, Heinz A, Hoischen R, Ilie G, Jones GA, Jungclaus A, Kelic A, Kondev FG, Kurtukian-Nieto T, Kurz N, Lalkovski S, Liu Z, Montes F, Pfützner M, Saito T, Shizuma T, Simons AJ, Schwertel S, Tachenov S, Walker PM, Werner-Malento E, Wieland O. (2012) 'Study of isomer production rates for A = 142-152 and Z = 62-67 in fragmentation of a relativistic 208Pb beam'. Acta Physica Polonica B, 43 (2), pp. 253-259.
  • Rice S, Valencia E, Algora A, Taín JL, Regan PH, Podolyák Z, Agramunt J, Gelletly W, Nichols AL. (2012) 'Decay heat measurements using total absorption gamma-ray spectroscopy'. Journal of Physics: Conference Series, 381 (1)
  • Podolyák Z. (2012) 'Prolate-oblate shape transition in heavy neutron-rich nuclei'. Journal of Physics: Conference Series, 381 (1)
  • Bruce AM, Bacelar AMD, Benzoni G, Gadea A, Górska M, Gottardo A, Pietri S, Podolyák Z, Valiente-Dobón JJ, Alcántara-Núñez JA, Al-Dahan N, Algora A, Alkhomashi N, Allegro PRP, Ayyad Y, Boutachkov P, Bowry M, Bunce M, Casarejos E, Cortés ML, Deo AY, Domingo-Prado C, Doncel M, Eppinger K, Farinon F, Farrelly GF, Geissel H, Gerl J, Goel N, Grȩbosz J, Gregor E, Haberman T, Hoischen R, Janik R, Klupp S, Kojouharov I, Kurz N, Lunardi S, Mandal S, Menegazzo R, Mengoni D, Naqvi F, Nicolini R, Nociforo C, Pissulla T, Prochazka A, Prokopowicz W, Regan PH, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steiger K, Strmen P, Szarka I, Walker PM, Weick H, Wollersheim HJ. (2012) 'β decay of 102Y produced in projectile fission of 238U'. Journal of Physics: Conference Series, 381 (1)

    Abstract

    The population of 102Zr following the β decay of 102Y produced in the projectile fission of 238U at the GSI facility in Darmstadt, Germany has been studied. 102Y is known to decay into 102Zr via two states, one of high spin and the other low spin. These states preferentially populate different levels in the 102Zr daughter. In this paper the intensities of transitions in 102Zr observed are compared with those from the decay of the low-spin level studied at the TRISTAN facility at Brookhaven National Laboratory and of the high-spin level studied at the JOSEF separator at the Kernforschungsanlage Jülich. © Published under licence by IOP Publishing Ltd.

  • Alharbi T, Mason PJR, Regan PH, Mrginean N, Podolyák Z, Algora A, Alazemi N, Bruce AM, Britton R, Bunce MR, Bucurescu D, Cooper N, Deleanu D, Filipescu D, Gelletly W, Ghit D, Glodariu T, Ilie G, Kisyov S, Lintott J, Lalkovski S, Liddick S, Mihai C, Mulholland K, Mrginean R, Negret A, Nakhostin M, Roberts OJ, Rice S, Smith JF, Stroe L, Sava T, Townsley C, Wilson E, Werner V, Zhekova M, Zamfir NV. (2012) 'Electromagnetic transition rate measurements in the N=80 isotone, 138Ce'. Journal of Physics: Conference Series, 381 (1)
  • Grieser M, Litvinov YA, Raabe R, Blaum K, Blumenfeld Y, Butler PA, Wenander F, Woods PJ, Aliotta M, Andreyev A, Artemyev A, Atanasov D, Aumann T, Balabanski D, Barzakh A, Batist L, Bernardes AP, Bernhardt D, Billowes J, Bishop S, Borge M, Borzov I, Bosch F, Boston AJ, Brandau C, Catford W, Catherall R, Cederkäll J, Cullen D, Davinson T, Dillmann I, Dimopoulou C, Dracoulis G, Düllmann CE, Egelhof P, Estrade A, Fischer D, Flanagan K, Fraile L, Fraser MA, Freeman SJ, Geissel H, Gerl J, Greenlees P, Grisenti RE, Habs D, von Hahn R, Hagmann S, Hausmann M, He JJ, Heil M, Huyse M, Jenkins D, Jokinen A, Jonson B, Joss DT, Kadi Y, Kalantar-Nayestanaki N, Kay BP, Kiselev O, Kluge HJ, Kowalska M, Kozhuharov C, Kreim S, Kröll T, Kurcewicz J, Labiche M, Lemmon RC, Lestinsky M, Lotay G, Ma XW, Marta M, Meng J, Mücher D, Mukha I, Müller A, Murphy AS, Neyens G, Nilsson T, Nociforo C, Nörtershäuser W, Page RD, Pasini M, Petridis N, Pietralla N, Pfützner M. (2012) 'Storage ring at HIE-ISOLDE: Technical design report: Technical design report'. European Physical Journal: Special Topics, 207 (1), pp. 1-117.

    Abstract

    We propose to install a storage ring at an ISOL-type radioactive beam facility for the first time. Specifically, we intend to setup the heavy-ion, low-energy ring TSR at the HIE-ISOLDE facility in CERN, Geneva. Such a facility will provide a capability for experiments with stored secondary beams that is unique in the world. The envisaged physics programme is rich and varied, spanning from investigations of nuclear ground-state properties and reaction studies of astrophysical relevance, to investigations with highly-charged ions and pure isomeric beams. The TSR might also be employed for removal of isobaric contaminants from stored ion beams and for systematic studies within the neutrino beam programme. In addition to experiments performed using beams recirculating within the ring, cooled beams can also be extracted and exploited by external spectrometers for high-precision measurements. The existing TSR, which is presently in operation at the Max-Planck Institute for Nuclear Physics in Heidelberg, is well-suited and can be employed for this purpose. The physics cases as well as technical details of the existing ring facility and of the beam and infrastructure requirements at HIE-ISOLDE are discussed in the present technical design report. © 2012 EDP Sciences and Springer.

  • Singh BSN, Liu Z, Wadsworth R, Grawe H, Brock TS, Boutachkov P, Braun N, Blazhev A, Gorska M, Pietri S. (2011) '16(+) Spin-Gap Isomer in (96)Cd'. American Physical Society PHYSICAL REVIEW LETTERS, 107 Article number 172502
  • Morales AI, Benlliure J, Agramunt J, Algora A, Alkhomashi N, Alvarez-Pol H, Boutachkov P, Bruce AM, Caceres LS, Casarejos E, Bacelar AMD, Doornenbal P, Dragosavac D, Farrelly G, Gadea A, Gelletly W, Gerl J, Gorska M, Grebosz J, Kojouharov I, Molina F, Perez-Loureiro D, Pietri S, Podolyak Z, Regan PH, Rubio B, Shaffner H, Steer SJ, Tashenov S, Verma S, Wollersheim HJ. (2011) 'Synthesis of N=127 isotones through (p,n) charge-exchange reactions induced by relativistic Pb-208 projectiles'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 84 (1) Article number ARTN 011601
  • Sumikama T, Yoshinaga K, Watanabe H, Nishimura S, Miyashita Y, Yamaguchi K, Sugimoto K, Chiba J, Li Z, Baba H, Berryman JS, Blasi N, Bracco A, Camera F, Doornenbal P, Go S, Hashimoto T, Hayakawa S, Hinke C, Ideguchi E, Isobe T, Ito Y, Jenkins DG, Kawada Y, Kobayashi N, Kondo Y, Kruecken R, Kubono S, Lorusso G, Nakano T, Kurata-Nishimura M, Odahara A, Ong HJ, Ota S, Podolyak Z, Sakurai H, Scheit H, Steiger K, Steppenbeck D, Takano S, Takashima A, Tajiri K, Teranishi T, Wakabayashi Y, Walker PM, Wieland O, Yamaguchi H. (2011) 'Structural Evolution in the Neutron-Rich Nuclei Zr-106 and Zr-108'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 106 (20) Article number ARTN 202501
  • Nomura K, Otsuka T, Rodriguez-Guzman R, Robledo LM, Sarriguren P, Regan PH, Stevenson PD, Podolyak Z. (2011) 'Spectroscopic calculations of the low-lying structure in exotic Os and W isotopes'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 83 (5) Article number ARTN 054303
  • Pietri S, Jungclaus A, Gorska M, Grawe H, Pfuetzner M, Caceres L, Detistov P, Lalkovski S, Modamio V, Podolyak Z, Regan PH, Rudolph D, Walker J, Werner-Malento E, Bednarczyk P, Doornenbal P, Geissel H, Gerl J, Grebosz J, Kojouharov I, Kurz N, Prokopowicz W, Schaffner H, Wollersheim HJ, Andgren K, Benlliure J, Benzoni G, Bruce AM, Casarejos E, Cederwall B, Crespi FCL, Hadinia B, Hellstrom M, Hoischen R, Ilie G, Khaplanov A, Kmiecik M, Kumar R, Maj A, Mandal S, Montes F, Myalski S, Simpson G, Steer SJ, Tashenov S, Wieland O. (2011) 'First observation of the decay of a 15(-) seniority v=4 isomer in Sn-128'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 83 (4) Article number ARTN 044328
  • Swan TPD, Walker PM, Podolyak Z, Reed MW, Dracoulis GD, Lane GJ, Kibedi T, Smith ML. (2011) 'Discovery of a nonyrast K-pi=8(+) isomer in Dy-162, and the influence of competing K-mixing mechanisms on its highly forbidden decay'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 83 (3) Article number ARTN 034322
  • Hoischen R, Rudolph D, Ma HL, Montuenga P, Hellstrom M, Pietri S, Podolyak Z, Regan PH, Garnsworthy AB, Steer SJ, Becker F, Bednarczyk P, Caceres L, Doornenbal P, Gerl J, Gorska M, Grebosz J, Kojouharov I, Kurz N, Prokopowicz W, Schaffner H, Wollersheim HJ, Andersson L-L, Atanasova L, Balabanski DL, Bentley MA, Blazhev A, Brandau C, Brown JR, Fahlander C, Johansson EK, Jungclaus A. (2011) 'Isomeric mirror states as probes for effective charges in the lower pf shell'. IOP PUBLISHING LTD JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 38 (3) Article number ARTN 035104
  • Nishimura S, Li Z, Watanabe H, Yoshinaga K, Sumikama T, Tachibana T, Yamaguchi K, Kurata-Nishimura M, Lorusso G, Miyashita Y, Odahara A, Baba H, Berryman JS, Blasi N, Bracco A, Camera F, Chiba J, Doornenbal P, Go S, Hashimoto T, Hayakawa S, Hinke C, Ideguchi E, Isobe T, Ito Y, Jenkins DG, Kawada Y, Kobayashi N, Kondo Y, Krücken R, Kubono S, Nakano T, Ong HJ, Ota S, Podolyák Z, Sakurai H, Scheit H, Steiger K, Steppenbeck D, Sugimoto K, Takano S, Takashima A, Tajiri K, Teranishi T, Wakabayashi Y, Walker PM, Wieland O, Yamaguchi H. (2011) 'β-Decay half-lives of very neutron-rich Kr to Tc isotopes on the boundary of the r-process path: An indication of fast r-matter flow'. American Physical Society Physical Review Letters, 106 (5) Article number 052502 , pp. ---.

    Abstract

    The β-decay half-lives of 38 neutron-rich isotopes from 36Kr to 43Tc have been measured; the half-lives of 100Kr, 103–105Sr, 106–108Y, 108–110Zr, 111,112Nb, 112–115Mo, and 116,117Tc are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A≈110 region. A revised model based on the second generation gross theory of β decay better predicts the measured half-lives and suggests a more rapid flow of the rapid neutron-capture process (r-matter flow) through this region than previously predicted.

  • DiJulio DD, Cederkall J, Fahlander C, Ekstrom A, Golubev P, Mattsson K, Rudolph D, de Angelis G, Aydin S, Deo AY, Farnea E, Farrelly G, Geibel K, He C, Iwanicki J, Kempley R, Marginean N, Menegazzo R, Mengoni D, Orlandi R, Podolyak Z, Recchia F, Reiter P, Sahin E, Smith J, Soderstrom PA, Torres DA, Tveten GM, Ur CA, Valiente-Dobon JJ, Wendt A, Zielinska M. (2011) 'Electromagnetic properties of vibrational bands in Er-170'. SPRINGER EUROPEAN PHYSICAL JOURNAL A, 47 (2) Article number ARTN 25
  • Watanabe H, Sumikama T, Nishimura S, Yoshinaga K, Li Z, Miyashita Y, Yamaguchi K, Baba H, Berryman JS, Blasi N, Bracco A, Camera F, Chiba J, Doornenbal P, Go S, Hashimoto T, Hayakawa S, Hinke C, Ideguchi E, Isobe T, Ito Y, Jenkins DG, Kawada Y, Kobayashi N, Kondo Y, Krücken R, Kubono S, Lorusso G, Nakano T, Kurata-Nishimura M, Odahara A, Ong HJ, Ota S, Podolyák Z, Sakurai H, Scheit H, Shi Y, Steiger K, Steppenbeck D, Sugimoto K, Tajiri K, Takano S, Takashima A, Teranishi T, Wakabayashi Y, Walker PM, Wieland O, Xu FR, Yamaguchi H. (2011) 'Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer'. Elsevier Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 696 (3), pp. 186-190.
  • Boutachkov P, Górska M, Grawe H, Blazhev A, Braun N, Brock TS, Liu Z, Nara Singh BS, Wadsworth R, Pietri S. (2011) 'High-spin isomers in 96Ag: Excitations across the Z=38 and Z=50, N=50 closed shells'. American Physical Society Physical Review C - Nuclear Physics, 84 (4) Article number 044311
  • Watanabe H, Yamaguchi K, Odahara A, Sumikama T, Nishimura S, Yoshinaga K, Li Z, Miyashita Y, Sato K, Prochniak L, Baba H, Berryman JS, Blasi N, Bracco A, Camera F, Chiba J, Doornenbal P, Go S, Hashimoto T, Hayakawa S, Hinke C, Hinohara N, Ideguchi E, Isobe T, Ito Y, Jenkins DG, Kawada Y, Kobayashi N, Kondo Y, Kruecken R, Kubono S, Lorusso G, Nakano T, Nakatsukasa T, Kurata-Nishimura M, Ong HJ, Ota S, Podolyak Z, Sakurai H, Scheit H, Steiger K, Steppenbeck D, Sugimoto K, Tajiri K, Takano S, Takashima A, Teranishi T, Wakabayashi Y, Walker PM, Wieland O, Yamaguchi H. (2011) 'Development of axial asymmetry in the neutron-rich nucleus Mo-110'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 704 (4), pp. 270-275.
  • Sohler D, Grevy S, Dombradi Z, Sorlin O, Gaudefroy L, Bastin B, Achouri NL, Angelique JC, Azaiez F, Baiborodin D, Borcea R, Bourgeois C, Buta A, Burger A, Caceres L, Chapman R, Dalouzy JC, Dlouhy Z, Drouard A, Elekes Z, Franchoo S, Iacob S, Kuti I, Laurent B, Lazar M, Liang X, Lienard E, Lukyanov SM, Mrazek J, Nalpas L, Negoita F, Nowacki F, Orr NA, Penionzkhevitch YE, Podolyak Z, Pougheon F, Poves A, Roussel-Chomaz P, Stanoiu M, Stefan I, St-Laurent MG. (2011) 'Spectroscopy of Si-39.41 and the border of the N=28 island of inversion'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 703 (4), pp. 417-421.
  • Nara Singh BS, Liu Z, Wadsworth R, Grawe H, Brock TS, Boutachkov P, Braun N, Blazhev A, Górska M, Pietri S, Rudolph D, Domingo-Pardo C, Steer SJ, Ataç A, Bettermann L, Cáceres L, Eppinger K, Engert T, Faestermann T, Farinon F, Finke F, Geibel K, Gerl J, Gernhäuser R, Goel N, Gottardo A, Grabosz J, Hinke C, Hoischen R, Ilie G, Iwasaki H, Jolie J, Kaşkaş A, Kojouharov I, Krücken R, Kurz N, Merchán E, Nociforo C, Nyberg J, Pfützner M, Prochazka A, Podolyák Z, Regan PH, Reiter P, Rinta-Antila S, Scholl C, Schaffner H, Söderström P-A, Warr N, Weick H, Wollersheim H-J, Woods PJ, Nowacki F, Sieja K. (2011) '16+ spin-gap isomer in Cd96'. American Physical Society Physical Review Letters, 107 (17) Article number 172502
  • Steer SJ, Podolyak Z, Pietri S, Gorska M, Grawe H, Maier KH, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R. (2011) 'Isomeric states observed in heavy neutron-rich nuclei populated in the fragmentation of a (208)Pb beam'. American Physical Society PHYSICAL REVIEW C, 84 (4) Article number ARTN 044313
  • Bruce AM, Lalkovski S, Bacelar AMD, Gorska M, Pietri S, Podolyak Z, Shi Y, Walker PM, Xu FR, Bednarczyk P, Caceres L, Casarejos E, Cullen IJ, Doornenbal P, Farrelly GF, Garnsworthy AB, Geissel H, Gelletly W, Gerl J, Grebosz J, Hinke C, Ilie G, Jaworski G, Kojouharov I, Kurz N, Myalski S, Palacz M, Prokopowicz W, Regan PH, Schaffner H, Steer S, Tashenov S, Wollersheim HJ. (2010) 'Shape coexistence and isomeric states in neutron-rich Tc-112 and Tc-113'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 82 (4) Article number ARTN 044312
  • Nakhostin M, Podolyak Z, Regan PH, Walker PM. (2010) 'A digital method for separation and reconstruction of pile-up events in germanium detectors'. AMER INST PHYSICS REVIEW OF SCIENTIFIC INSTRUMENTS, 81 (10) Article number ARTN 103507
  • Naqvi F, Gorska M, Caceres L, Jungclaus A, Pfuetzner M, Grawe H, Nowacki F, Sieja K, Pietri S, Werner-Malento E, Regan PH, Rudolf D, Podolyak Z, Jolie J, Andgren K, Beck T, Bednarczyk P, Benlliure J, Benzoni G, Bruce AM, Casarejos E, Cederwall B, Crespi FCL, Detistov P, Dombradi Z, Doornenbal P, Geissel H, Gerl J, Grebosz J, Hadinia B, Hellstrom M, Hoischen R, Ilie G, Khaplanov A, Kojouharov I, Kmiecik M, Kurz N, Lalkovski S, Maj A, Mandal S, Modamio V, Montes F, Myalski S, Prokopowicz W, Reiter P, Schaffner H, Simpson G, Sohler D, Steer SJ, Tashenov S, Walker J, Wieland O, Wollersheim HJ. (2010) 'Isomer spectroscopy of Cd-127'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 82 (3) Article number ARTN 034323
  • Simpson EC, Tostevin JA, Podolyak Z, Regan PH, Steer SJ. (2010) 'Differential isomeric ratios following two-proton knockout from Pb-208'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 82 (3) Article number ARTN 037602
  • Farnea E, Recchia F, Bazzacco D, Kroell T, Podolyak Z, Quintana B, Gadea A. (2010) 'Conceptual design and Monte Carlo simulations of the AGATA array'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 621 (1-3), pp. 331-343.
  • Kmiecik M, Maj A, Gerl J, Neyens G, Atanasova L, Balabanski DL, Becker F, Bednarczyk P, Benzoni G, Blasi N, Bracco A, Brambilla S, Caceres L, Camera F, Ciemala M, Crespi FCL, Chamoli SK, Chmel S, Daugas JM, Detistov P, Doornenbal P, Georgiev G, Gladnishki K, Gorska M, Grawe H, Grebosz J, Hass M, Hoischen R, Ilie G, Ionescu-Bujor M, Jolie J, Kojuharov I, Krasznahorkay A, Kulessa R, Lach M, Lakshmi S, Leoni S, Lo Bianco G, Lozeva R, Maier KH, Mallion S, Mazurek K, Meczynski W, Million B, Montanari D, Myalski S, Petrache C, Pfuetzner M, Pietri S, Podolyak Z, Prokopowicz W, Rudolph D, Saito N, Saito TR, Saltarelli A, Simpson GS, Styczen J, Vermeulen N, Werner-Malento E, Wieland O, Wollersheim HJ, Zieblinski M. (2010) 'Spin-alignment and g-factor measurement of the I-pi=12(+) isomer in Pb-192 produced in the relativistic-energy fragmentation of a U-238 beam'. SPRINGER EUROPEAN PHYSICAL JOURNAL A, 45 (2), pp. 153-158.
  • Atanasova L, Balabanski DL, Chamoli SK, Hass M, Simpson GS, Bazzacco D, Becker F, Bednarczyk P, Benzoni G, Blasi N, Blazhev A, Bracco A, Brandau C, Caceres L, Camera F, Crespi FCL, Detistov P, Doornenbal P, Fahlander C, Farnea E, Georgiev G, Gerl J, Gladnishki KA, Gorska M, Grebosz J, Hoischen R, Ilie G, Ionescu-Bujor M, Iordachescu A, Jungclaus A, Lo Bianco G, Kmiecik M, Kojouharov I, Kurz N, Lakshmi S, Lozeva R, Maj A, Montanari D, Neyens G, Pfuetzner M, Pietri S, Podolyak Z, Prokopowicz W, Rudolph D, Rusev G, Saito TR, Saltarelli A, Schaffner H, Schwengner R, Tashenov S, Valiente-Dobon JJ, Vermeulen N, Walker J, Werner-Malento E, Wieland O, Wollersheim HJ, Grawe H, Hjorth-Jensen M. (2010) 'g-factor measurements at RISING: The cases of Sn-127 and Sn-128'. EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY EPL, 91 (4) Article number ARTN 42001

    Abstract

    We report on g-factor measurements of the 19/2+ T1/2=4.5(3) μs isomer in 127Sn and the 10+ T1/2=2.69(23) μs isomer in 128Sn. These isomers were produced and spin-aligned in relativistic heavy-ion fragmentation at GSI and were selected and separated by the GSI fragment separator (FRS). The γ-rays of the isomeric decay were detected by the RISING γ-ray spectrometer. The method of time-differential perturbed angular distributions was utilized. The measured g-factors, g(19/2+; 127Sn)=− 0.17(2) and g(10+; 128Sn)=− 0.20(4), are compared with shell model calculations. The measured g-factors confirm the predominantly νh11/2− 2 and ν(s1/2− 1h11/2−2) character of the 10+ and 19/2− isomers in 128Sn and 127Sn, respectively. The results demonstrate the feasibility of the method for similar measurements in exotic neutron-rich nuclei.

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  • Simpson EC, Tostevin JA, Podolyak Z, Regan PH, Steer SJ. (2009) 'Population of low-seniority isomeric states of Hg-206 by two-proton knockout reactions at relativistic energies'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 80 (6) Article number ARTN 064608
  • Alkhomashi N, Regan PH, Podolyak Z, Pietri S, Garnsworthy AB, Steer SJ, Benlliure J, Caserejos E, Casten RF, Gerl J, Wollersheim HJ, Grebosz J, Farrelly G, Gorska M, Kojouharov I, Schaffner H, Algora A, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Bacelar AMD, Cullen IJ, Caceres L, Doornenbal P, Estevez ME, Fujita Y, Gelletly W, Hoischen R, Kumar R, Kurz N, Lalkovski S, Liu Z, Mihai C, Molina F, Morales AI, Muecher D, Prokopowicz W, Rubio B, Shi Y, Tamii A, Tashenov S, Valiente-Dobon JJ, Walker PM, Woods PJ, Xu FR. (2009) 'beta(-)-delayed spectroscopy of neutron-rich tantalum nuclei: Shape evolution in neutron-rich tungsten isotopes'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 80 (6) Article number ARTN 064308
  • Zhang YH, Hasegawa M, Guo WT, Liu ML, Zhou XH, de Angelis G, Axiotis TM, Gadea A, Marginean N, Martinez, Napoli DR, Rusu C, Podolyak Z, Ur C, Bazzacco D, Brandolini F, Lunardi S, Lenzi SM, Menegazzo R, Schwengner R, Gargano A, von Oertzen W, Tazaki S. (2009) 'High-spin level structure in Mo-94,Mo-95'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 79 (4) Article number ARTN 044316
  • Chen L, Litvinov YA, Plass WR, Beckert K, Beller P, Bosch F, Boutin D, Caceres L, Cakirli RB, Carroll JJ, Casten RF, Chakrawarthy RS, Cullen DM, Cullen IJ, Franzke B, Geissel H, Gerl J, Gorska M, Jones GA, Kishada A, Knoebel R, Kozhuharov C, Litvinov SA, Liu Z, Mandal S, Montes F, Muenzenberg G, Nolden F, Ohtsubo T, Patyk Z, Podolyak Z, Propri R, Rigby S, Saito N, Saito T, Scheidenberger C, Shindo M, Steck M, Ugorowski P, Walker PM, Williams S, Weick H, Winkler M, Wollersheim H-J, Yamaguchi T. (2009) 'Schottky Mass Measurement of the Hg-208 Isotope: Implication for the Proton-Neutron Interaction Strength around Doubly Magic Pb-208'. AMER PHYSICAL SOC PHYSICAL REVIEW LETTERS, 102 (12) Article number ARTN 122503
  • Gorska M, Caceres L, Grawe H, Pfuetzner M, Jungclaus A, Pietri S, Werner-Malento E, Podolyak Z, Regan PH, Rudolph D, Detistov R, Lalkovski S, Modamio V, Walker J, Beck T, Bednarczyk P, Doornenbal P, Geissel H, Gerl J, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Prokopowicz W, Schaffner H, Weick H, Wollersheim H-J, Andgren K, Benlliure J, Benzoni G, Bruce AM, Casarejos E, Cederwall B, Crespi FCL, Hadinia B, Hellstrom M, Ilie G, Khaplanov A, Kmiecik M, Kumar R, Maj A, Mandal S, Montes F, Myalski S, Simpson GS, Steer SJ, Tashenov S, Wieland O, Dombradi Z, Reiter R, Sohler D. (2009) 'Evolution of the N=82 shell gap below Sn-132 inferred from core excited states in In-131'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 672 (4-5), pp. 313-316.
  • Podolyak Z, Steer SJ, Pietri S, Xu FR, Liu HL, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R, Gorska M, Gerl J, Wollersheim HJ, Kurtukian-Nieto T, Benzoni G, Shizuma T, Becker F, Bednarczyk P, Caceres L, Doornenbal P, Geissel H, Grebosz J, Kelic A, Kojouharov I, Kurz N, Montes F, Prokopowicz W, Saito T, Schaffner H, Tashenov S, Heinz A, Pfutzner M, Jungclaus A, Balabanski DL, Brandau C, Bruce AM, Catford WN, Cullen IJ, Dombradi Z, Estevez E, Gelletly W, Ilie G, Jolie J, Jones GA, Kmiecik M, Kondev FG, Kruecken R, Lalkovski S, Liu Z, Maj A, Myalski S, Schwertel S, Walker PM, Werner-Malento E, Wieland O. (2009) 'Weakly deformed oblate structures in Os-198(76)122'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 79 (3) Article number ARTN 031305
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  • Kutsarova T, Stefanova EA, Minkova A, Lalkovski S, Korichi A, Lopez-Martens A, Hannachi F, Huebel H, Goergen A, Jansen A, Schoenwasser G, Khoo TL, Herskind B, Bergstrom M, Bazzacco D, Podolyak Z. (2009) 'High-spin level scheme of Pb-194'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 79 (1) Article number ARTN 014315
  • Caceres L, Gorska M, Jungclaus A, Pfutzner M, Grawe H, Nowacki F, Sieja K, Pietri S, Rudolph D, Podolyak Z, Regan PH, Werner-Malento E, Detistov P, Lalkovski S, Modamio V, Walker J, Andgren K, Bednarczyk P, Benlliure J, Benzoni G, Bruce AM, Casarejos E, Cederwall B, Crespi FCL, Doornenbal P, Geissel H, Gerl J, Grebosz J, Hadinia B, Hellstrom M, Hoischen R, Ilie G, Khaplanov A, Kmiecik M, Kojouharov I, Kumar R, Kurz N, Maj A, Mandal S, Montes F, Martinez-Pinedo G, Myalski S, Prokopowicz W, Schaffner H, Simpson GS, Steer SJ, Tashenov S, Wieland O, Wollersheim HJ. (2009) 'Spherical proton-neutron structure of isomeric states in Cd-128'. AMER PHYSICAL SOC PHYSICAL REVIEW C, 79 (1) Article number ARTN 011301
  • Steer SJ, PodolyÁk ZS, Pietri S, GÓrska M, Farrelly GF, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R, Gerl J, Wollersheim HJ, Grawe H, Maier KH, Becker F, Bednarczyk P, CÁceres L, Doornenbal P, Geissel H, Grbosz J, Kelic A, Kojouharov I, Kurz N, Montes F, Prokopowicz W, Saito T, Schaffner H, Tashenov S, Heinz A, Kurtukian-Nieto T, Benzoni G, PfÜtzner M, Jungclaus A, Balabanski DL, Brandau C, Brown A, Bruce AM, Catford WN, Cullen IJ, DombrÁdi Z, Estevez ME, Gelletly W, Ilie G, Jolie J, Jones GA, Kmiecik M, Kondev FG, KrÜcken R, Lalkovski S, Liu Z, Maj A, Myalski S, Schwertel S, Shizuma T, Walker PM, Werner-Malento E, Wieland O. (2009) 'Isomeric decay studies in neutron-rich N ≈ 126 nuclei'. International Journal of Modern Physics E, 18 (4), pp. 1002-1007.

    Abstract

    Heavy neutron-rich nuclei were populated via relativistic energy fragmentation of a E/A=1 GeV 208Pb beam. The nuclei of interest were selected and identified by a fragment separator and then implanted in a passive plastic stopper. Delayed rays following internal isomeric decays were detected by the RISING array. Experimental information was obtained on a number of nuclei with Z=73-80 (Ta-Hg), providing new information both on the prolate-oblate transitional region as well as on the N=126 closed shell nuclei.

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  • Rizzutto MA, Rao MN, Seale WA, Oliveira JRB, Cybulska EW, Medina NH, Ribas RV, Bazzacco D, Brandolini F, Lunardi S, Petrache CM, Podolyak Z, Rossi-Alvarez C, Ur CA, de Angelis G, Napoli DR, Spolaore P, Gadea A, De Acuna D, De Poli M, Farnea E, Foltescu D, Ionescu-Bujor M, Iordachescu A, Chatterjee A, Saxena A, Bohus LS. (2000) 'The pi h(11/2)circle times nu h(11/2) yrast band in odd-odd Tb-140'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 62 (2) Article number ARTN 027302
  • Podolyak Z, Bizzeti PG, Bizzeti-Sona AM, Lunardi S, Bazzacco D, Dewald A, Algora A, de Angelis G, De Poli M, Farnea E, Gadea A, Kasemann DR, Klug T, Kroll T, Lenzi S, Napoli DR, Petrache CM, Peusquens R, Alvarez CR, Martinez T, Ur CA. (2000) 'Multiple octupole excitations in Gd-148'. SPRINGER EUROPEAN PHYSICAL JOURNAL A, 8 (2), pp. 147-151.
  • Bazzacco D, Bellato M, Kroll T, Quintana B, Spolaore P, Fanzago F, Napoli DR, Gadea A, Farnea E, Podolyak Z, Camera F, Million B, Wieland O, Geraci A, Pullia A, Ripamonti G. (2000) 'MARS: A project for an advanced gamma-ray array.'. AMER CHEMICAL SOC ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 219, pp. U80-U81.
  • Rizzi V, Viesti G, Bazzacco D, Algora-Pineda A, Appelbe D, de Angelis G, Belcari N, Cinausero M, De Poli M, Drake TE, Gadea A, Galindo-Uribarri A, Gelli N, Fabris D, Farnea E, Fioretto E, Krolas W, Kroll T, Lucarelli F, Lunardi S, Lunardon M, Martinez T, Menegazzo R, Nayak BK, Nebbia G, Napoli DR, Nyako B, Petrache C, Podolyak Z, Prete G, Alvarez CR, Samant A, Spolaore P, Ur C, Zuber K. (2000) 'Search for hyperdeformed structures populated in the Cl-37+Sn-120 reaction by using EUROBALL III'. SPRINGER VERLAG EUROPEAN PHYSICAL JOURNAL A, 7 (3), pp. 299-301.
  • Rizzutto MA, Rao MN, Scale WA, Oliveira JRB, Cybulska EW, Medina NH, Ribas RV, Espinoza-Quiñones FR, Bazzacco D, Brandolini F, Lunardi S, Petrache CM, Podolyák Z, Rossi-Alvarez C, Ur CA, De Angelis G, Napoli DR, Spolaore P, Gadea A, De Acuña D, De Poli M, Farnea E, Foltescu D, Ionescu-Bujor M, Iordachescu A, Chatterjee A, Saxena A, Sajo Bohus L. (2000) 'The πh11/2⊗νh11/2 yrast band in odd-odd 140Tb'. Physical Review C - Nuclear Physics, 62 (2), pp. 273021-273024.
  • Perries S, Astier A, Ducroux L, Meyer M, Redon N, Petrache CM, Bazzacco D, Falconi G, Lunardi S, Lunardon M, Alvarez CR, Ur CA, Venturelli R, Viesti G, Deloncle I, Porquet MG, de Angelis G, de Poli M, Fahlander C, Farnea E, Foltescu D, Gadea A, Napoli DR, Podolyak Z, Bracco A, Frattini S, Leoni S, Cederwall B, Johnson A, Wyss RA. (1999) 'Decay-out of the yrast superdeformed band in Nd-136: Towards an experimental extraction of the neutron pairing gap at large deformation'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 60 (6) Article number ARTN 064313
  • Espinoza-Quinones FR, Rizzutto MA, Cybulska EW, Seale WA, Oliveira JRB, Medina NH, Ribas RV, Rao MN, Bazzacco D, Brandolini F, Lunardi S, Petrache CM, Podolyak Z, Rossi-Alvarez C, Soramel F, Ur CA, Cardona MA, de Angelis G, Napoli DR, Spolaore P, Gadea A, De Acuna D, De Poli M, Farnea E, Foltescu D, Ionescu-Bujor M, Iordachescu A, Roca V, Terrasi F, Chatterjee A, Saxena A, Bohus LS. (1999) 'High-spin state spectroscopy in Tb-143'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 60 (5) Article number ARTN 054304
  • Lenzi SM, Napoli DR, Ur CA, Bazzacco D, Brandolini F, Cameron JA, Caurier E, de Angelis G, De Poli M, Farnea E, Gadea A, Hankonen S, Lunardi S, Martinez-Pinedo G, Podolyak Z, Poves A, Alvarez CR, Sanchez-Solano J, Somacal H. (1999) 'Band termination in the N = Z odd-odd nucleus V-46'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 60 (2) Article number ARTN 021303
  • Sohler D, Podolyak Z, Dombradi Z, Gulyas J, Algora A, Brant S, Krstic V, Paar V. (1999) 'Further evidence on shape coexistence in As-72'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 59 (3), pp. 1328-1333.
  • Rao MN, Ribas RV, Medina NH, Oliveira JRB, Rizzutto MA, Seale WA, Petrache CM, Bazzacco D, Lunardi S, Alvarez CR, Scanferla T, Ur CA, Venturelli R, Espinoza-Quinones FR, Podolyak Z, De Acuna D, de Angelis G, De Poli M, Farnea E, Gadea A, Napoli DR, Zhu LH, Dewald A, Gableske J, von Brentano P. (1998) 'Influence of valence neutron configuration on quadrupole deformation in doubly-odd Pr-134'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 58 (3), pp. R1367-R1371.
  • Petrache CM, Brant S, Bazzacco D, Falconi G, Farnea E, Lunardi S, Paar V, Podolyak Z, Venturelli R, Vretenar D. (1998) 'Detailed spectroscopy and IBFFM interpretation of the odd-odd nuclei Pr-132 and Pr-130'. ELSEVIER SCIENCE BV NUCLEAR PHYSICS A, 635 (3), pp. 361-383.
  • Petrache CM, Wyss R, Podolyak Z, Bazzacco D, de Angelis G, de Acuna D, De Poli M, Dewald A, Farnea E, Gableske J, Gadea A, Lunardi S, Napoli DR, Rao MN, Alvarez CR, Scanferla T, Ur CA, Venturelli R, von Brentano P, Zhu LH. (1998) 'Lifetime measurements of highly deformed bands in Nd-134,Nd-135 and Ce-131'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 57 (1), pp. R10-R14.
  • Petrache CM, Bazzacco D, Bednarczyk P, de Angelis G, De Poli M, Fahlander C, Falconi G, Farnea E, Gadea A, Lunardon M, Lunardi S, Marginean N, Menegazzo R, Pavan P, Podolyak Z, Alvarez CR, Ur CA, Venturelli R, Zhu LH, Wyss R. (1997) 'Rotational quenching of the N=72 shell gap and the role of the nu i(13/2) intruder orbital in Nd-132'. ELSEVIER SCIENCE BV PHYSICS LETTERS B, 415 (3), pp. 223-230.
  • Bucurescu D, Alvarez CR, Ur CA, Marginean N, Spolaore P, Bazzacco D, Lunardi S, Napoli DR, IonescuBujor M, Iordachescu A, Petrache CM, deAngelis G, Gadea A, Foltescu D, Brandolini F, Falconi G, Farnea E, Lenzi SM, Medina NH, Podolyak Z, DePoli M, Rao MN, Venturelli R. (1997) 'Evolution of collectivity along the N=Z line: The Mo-84 nucleus'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 56 (5), pp. 2497-2501.
  • Sohler D, Podolyak Z, Gulyas J, Fenyes T, Algora A, Dombradi Z, Brant S, Paar V. (1997) 'Structure of the As-73 nucleus'. ELSEVIER SCIENCE BV NUCLEAR PHYSICS A, 618 (1-2), pp. 35-54.
  • Petrache CM, Sun Y, Bazzacco D, Lunardi S, Alvarez CR, Falconi G, Venturelli R, Maron G, Napoli DR, Podolyak Z, Walker PM. (1997) 'High-K bands and oblate-prolate coexistence in Nd-134'. ELSEVIER SCIENCE BV NUCLEAR PHYSICS A, 617 (2), pp. 249-264.
  • Alvarez CR, Vretenar D, Podolyak Z, Bazzacco D, Bonsignori G, Brandolini F, Brant S, deAngelis G, DePoli M, IonescuBujor M, Li Y, Lunardi S, Medina NH, Petrache CM. (1996) 'Excited states in Sm-139 described with the interacting boson model plus broken pairs'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 54 (1), pp. 57-71.
  • Petrache CM, Sun Y, Bazzacco D, Lunardi S, Alvarez CR, Venturelli R, DeAcuna D, Maron G, Rao MN, Podolyak Z, Oliveira JRB. (1996) 'Multiple dipole bands at prolate shapes in Nd-136 and their description through the projected shell model'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW C, 53 (6), pp. R2581-R2585.
  • PODOLYAK Z, FENYES T, TIMAR J. (1995) 'STRUCTURE OF THE AS-70 NUCLEUS'. ELSEVIER SCIENCE BV NUCLEAR PHYSICS A, 584 (1), pp. 60-83.

Conference papers

  • Wilson J, Lebois M, Qi L, Amador-Celdran P, Bleuel D, Briz J, Carroll R, Catford WN, De Witte H, Doherty D, Eloirdi R, Georgiev G, Gottardo A, Goasduff A, Hadynska-Klek K, Hauschild K, Hess M, Ingeberg V, Konstantinopoulos T, Ljungvall J, Lopez-Martens A, Lorusso G, Lozeva R, Lutter R, Marini P, Matea I, Materna T, Mathieu L, Oberstedt A, Oberstedt S, Panebianco S, Podolyak Z, Porta D, Regan PH, Reiter P, Rezynkina K, Rose S, Sahin E, Seidlitz M, Shearman R, Siebeck B, Siem S, Smith A, Tveten G, Verney D, Warr N, Zeiser F, Zielinska M. (2017) 'PRODUCTION AND STUDY OF NEUTRON-RICH NUCLEI USING THE LICORNE DIRECTIONAL NEUTRON SOURCE'. Państwowe Wydawn. Naukowe Acta Physica Polonica B, Zakopane, Poland: Conference on Nuclear Physics “Extremes of the Nuclear Landscape” 48 (3), pp. 395-401.

    Abstract

    We have recently successfully demonstrated a new technique for production and study of many of the most exotic neutron-rich nuclei at moderate spins. LICORNE, a newly developed directional inverse-kinematic fast neutron source at the IPN Orsay, was coupled to the MINIBALL high resolution -ray spectrometer to study nuclei the furthest from stability using the 238U(n; f) reaction. This reaction and 232Th(n; f) are the most neutron-rich fission production mechanisms achievable and can be used to simultaneously populate hundreds of neutron-rich nuclei up to spins of 16 ~. High selectivity in the experiment was achieved via triple -ray coincidences and the use of a 400 ns period pulsed neutron beam, a technique which is unavailable to other population mechanisms such as 235U(nth; f) and 252Cf(SF). The pulsing allows time correlations to be exploited to separate delayed rays from isomeric states in the hundreds of nuclei produced, which are then used to cleanly select a particular nucleus and its exotic binary partners. In the recent experiment, several physics cases are simultaneously addressed such as shape coexistence, the evolution of shell closures far from stability, and the spectroscopy of nuclei in the r-process path near N = 82. Preliminary physics results on anomalies in the 238U(n; f) fission yields and the structure of the 138Te and 100Sr nuclei will soon be published. A future project, -ball, to couple LICORNE with a hybrid escape-suppressed spectrometer to refine further the technique and achieve a large increase in the observational limit is discussed.

  • Gurgi LA, Regan PH, Söderström P, Watanabe H, Walker PM, Podolyak Z, Nishimura S, Berry TA, Doornenbal P, Lorusso G, Isobe T, Baba H, Xu Z, Sakurai H, Sumikama T, Catford WN, Bruce A, Browne F, Lane G, Kondev F, Odahara A, Wu J, Liu H, Xu F, Korkulu Z, Lee P, Liu J, Phong V, Yagi A, Zhang G, Alharbi T, Carroll R, Chae K, Dombradi Z, Estrade A, Fukuda N, Griffin C, Ideguchi E, Inabe N, Kanaoka H, Kojouharov I, Kubo T, Kubono S, Kurz N, Kuti I, Lalkovski S, Lee E, Lee C, Lotay GJ, Moon C, Nishizuka I, Nita C, Patel Z, Roberts O, Schaffner H, Shand CM, Suzuki H, Takeda H, Terashima S, Vajta Z, Kanaya S, Valiente-Dobón J. (2017) 'Isomer Spectroscopy of Neutron-rich 165,167Tb'. Acta Physica Polonica B, Zakopane, Poland: Conference on Nuclear Physics “Extremes of the Nuclear Landscape” 48 (3), pp. 601-608.

    Abstract

    We present information on the excited states in the prolate-deformed, neutron-rich nuclei 165;167Tb100;102. The nuclei of interest were synthesised following in-flight fission of a 345 MeV per nucleon 238U primary beam on a 2 mm 9Be target at the Radioactive Ion-Beam Factory (RIBF), RIKEN, Japan. The exotic nuclei were separated and identified event-by-event using the BigRIPS separator, with discrete energy gamma-ray decays from isomeric states with half-lives in the s regime measured using the EURICA gamma-ray spectrometer. Metastable-state decays are identified in 165Tb and 167Tb and interpreted as arising from hindered E1 decay from the 7 2 [523] single quasi-proton Nilsson configuration to rotational states built on the 3 2 [411] single quasi-proton ground state. These data correspond to the first spectroscopic information in the heaviest, odd-A terbium isotopes reported to date and provide information on proton Nilsson configurations which reside close to the Fermi surface as the 170Dy doubly-midshell nucleus is approached.

  • Rudigier M, Lalkovski S, Gamba E, Bruce A, Podolyak Z, Regan PH, Carpenter M, Zhu S, Ayangeakaa A. (2017) 'Fast Timing Measurement Using an LaBr3(Ce) Scintillator Detector Array Coupled with Gammasphere'. Acta Physica Polonica B, Zakopane, Poland: Conference on Nuclear Physics “Extremes of the Nuclear Landscape” 48 (3), pp. 351-357.

    Abstract

    A fast-timing experiment was performed at the Argonne National Laboratory in December 2015 and January 2016, measuring decay radiation of fission products from a 252Cf fission source. Details of the set-up, integration with Digital Gammasphere, and the data acquisition system are presented. The timing performance of the set-up, capable of measuring lifetimes from the nanosecond region down to tens of picoseconds, is discussed. First preliminary results from the fast-timing analysis of the fission fragment data are presented

  • Söderström P, Walker PM, Wu J, Liu H, Regan PH, Watanabe H, Doornenbal P, Korkulu Z, Lee P, Liu J, Lorusso G, Nishimura S, Phong V, Sumikama T, Xu F, Yagi A, Zhang G, Ahn D, Alharbi T, Baba H, Browne F, Bruce A, Carroll R, Chae K, Dombradi Z, Estrade A, Fukuda N, Griffin C, Ideguchi E, Inabe N, Isobe T, Kanaoka H, Kanaya S, Kojouharov I, Kondev F, Kubo T, Kubono S, Kurz N, Kuti I, Lalkovski S, Lane G, Lee E, Lee C, G. Lotay G, Moon C, Nishizuka I, Nita C, Odahara A, Patel Z, Podolyak Z, Roberts O, Sakurai H, Schaffner H, Shand C, Suzuki H, Takeda H, Terashima S, Vajta Z, Valiente-Dòbon J, Xui Z. (2016) 'Collective And Single-particle Structures In The Neutron-rich Doubly Mid-shell Nucleus 170Dy'. Proceedings of Science: The 26th International Nuclear Physics Conference, Adelaide, Australia: The 26th International Nuclear Physics Conference (INPC2016)

    Abstract

    One of the most successful descriptions of the structure of atomic nuclei is the spherical shell model. It, however, becomes impractical when moving away from closed-shell nuclei. Instead, it is the interplay between the macroscopic shape degrees of freedom and the microscopic nature of the underlying single-particle structure in a deformed basis that determines the nuclear structure. Being the heaviest nucleus precisely in the middle of, known, closed proton and neutron shells, 170Dy has become a central calibration point for tests of collective models of nuclear physics. However, besides one candidate transition from a previous experiment in Legnaro, Italy, no experimental information is available for this nucleus. Using the EURICA setup at RIKEN, which couples the worlds highest intensity in-flight fission facility with a high-efficiency HPGe array, an experiment in November 2014 produced 170Dy nuclei by in-flight fission of a 238U beam. The results from this experiment provide a wealth of information on this elusive nucleus, including the evolution of quadrupole collectivity, rigidity and higher order deformations, as well as the long sought for isomeric K = 6+ state, predicted to be exceptionally pure at mid-shell. These results provide us with a rich level scheme for discussing both single-particle and collective structures at mid-shell.

  • Patel Z, Podolyak Z, Walker PM, Regan PH, Söderström P-A, Watanabe H, Ideguchi E, Simpson GS, Nishimura S, Browne F, Doornenbal P, Lorusso P, Rice S, Sinclair L, Sumikama T, Wu J, Xu ZY, Aoi N, Baba H, Bello Garrote FL, Benzoni G, Daido R, Dombrádi Z, Fang Y, Fukuda N, Gay G, Go S, Gottardo A, Inabe N, Isobe T, Kameda K, Kobayashi K, Kobayashi M, Komatsubara T, Kojouharov I, Kubo T, Kurz N, Kuti I, Li Z, Liu HL, Matsushita M, Michimasa S, Moon CB, Nishibata H, Nishizuka I, Odahara A, Sahin E, Sakurai H, Schaffner H, Suzuki H, Takeda H, Taprogge J, Vajta Z, Xu FR, Yagi A, Yokoyama R. (2016) 'β-decay spectroscopy of neutron-rich 160,161,162Sm isotopes'. EDP Sciences EPJ Web of Conferences, Canberra, Australia: Heavy Ion Accelerator Symposium 2015: International Nuclear Structure Conference in Remembrance of George Dracoulis 123 (2016)

    Abstract

    Neutron-rich 160,161,162Sm isotopes have been populated at the RIBF, RIKEN via β first time. β-coincident γ rays were observed in all three isotopes including γ rays from the isomeric decay of 160Sm and 162Sm. The isomers in 160Sm and 162Sm have previously been observed but have been populated via β decay for the first time. The isomeric state in 162Sm is assigned a configuration based on the decay pattern. The level schemes of 160Sm and 162Sm are presented. The ground states in the parent nuclei 160Pm and 162Pm are both assigned a configuration based on the population of states in the daughter nuclei. Blocked BCS calculations were performed to further investigate the spin-parities of the ground states in 160Pm, 161Pm, and 162Pm, and the isomeric state in 162Sm

  • Domingo-Pardo C, Caballero-Folch R, Agramuntl J, Algora A, Arcones A, Amei F, Ayyad Y, Benlliure J, Bowry M, Calvino F, Cano-Ott D, Cortes G, Davinson T, Lmann ID, Estrade A, Evdokimov A, Faestermann T, Farinon F, Galaviz D, Garcia-Rios A, Geissel H, Geety W, Gernhaeuser R, Gomez-Hornillos MB, Guerrero C, Heil M, Hinke C, Knoebel R, Kojouharov I, Kurcewicz J, Kurz N, Litvinov Y, Maier L, Marganiec J, Marta M, Martinez T, Martinez-Pinedo G, Meyer BS, Montes F, Mukha I, Napoli DR, Nociforo C, Paradela C, Pietri S, Podolyak Z, Prochazka A, Rice S, Riego A, Rubio B, Schaffner H, Scheidenberger C, Smith K, Sokol E, Steiger K, Sun B, Tain JL, Takechi M, Testov D, Weick H, Wilson E, Winfield JS, Wood R, Woods P, Yeremin A. (2016) 'Approaching the precursor nuclei of the third r-process peak with RIBs'. IOP PUBLISHING LTD NUCLEAR PHYSICS IN ASTROPHYSICS VI (NPA6), Hungarian Acad Sci, Inst Nucl Res, Lisbon, PORTUGAL: 6th Nuclear Physics in Astrophysics Conference (NPA) 665
  • Soederstroem P-A, Regan PH, Walker PM, Watanabe H, Doornenbal P, Korkulu Z, Lee P, Liu HL, Liu JJ, Lorusso G, Nishimura S, Sumikama T, Phong VH, Wu J, Xu FR, Yagi A, Zhang GX, Alharbi T, Baba H, Browne F, Bruce AM, Carroll R, Chae KY, Dombradi Z, Estrade A, Fukuda N, Griffin C, Ideguchi E, Inabe N, Isobe T, Kanaoka H, Kojouharov I, Kondev FG, Kubo T, Kubono S, Kurz N, Kuti I, Lalkovski S, Lane GJ, Lee CS, Lee EJ, Lotay G, Moon C-B, Nishizuka I, Nita CR, Odahara A, Patel Z, Podolyak Z, Roberts OJ, Sakurai H, Schaffner H, Shand CM, Suzuki H, Takeda H, Terashima S, Vajta Z, Valiente-Dobon JJ, Xu ZY, Yoshida S. (2015) 'Heavy Rotation - Evolution of quadrupole collectivity centred at the neutron-rich doubly mid-shell nucleus Dy-170'. AMER INST PHYSICS NUCLEAR STRUCTURE AND DYNAMICS '15, Portoroz, SLOVENIA: 3rd International Conference on Nuclear Structure and Dynamics 1681
  • Regis J-M, Jolie J, Mach H, Simpson GS, Blazhev A, Pascovici G, Pfeiffer M, Rudigier M, Saed-Samii N, Warr N, Blanc A, de France G, Jentschel M, Koester U, Mutti P, Soldner T, Ur CA, Urban W, Bruce AM, Drouet F, Fraile LM, Ilieva S, Korten W, Kroell T, Lalkovski S, Marginean N, Paziy V, Podolyak Z, Regan PH, Stezowski O, Vancraeyenest A. (2015) 'The Generalized Centroid Difference method for lifetime measurements via gamma-gamma coincidences using large fast-timing arrays'. E D P SCIENCES CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS, Dresden, GERMANY: 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) 93
  • Jolie J, Regis J-M, Wilmsen D, Ahmed S, Pfeiffer M, Saed-Samii N, Warr N, Blanc A, Jentschel M, Koester U, Mutti P, Soldner T, Simpson G, De France G, Urban W, Drouet F, Vancraeyenest A, Baczyk P, Czerwinski M, Korgul A, Mazzocchi C, Rzaca-Urban T, Bruce A, Roberts OJ, Fraile LM, Mach H, Paziy V, Ignatov A, Ilieva S, Kroell T, Scheck M, Thuerauf M, Ivanova D, Kisyov S, Lalkovski S, Podolyak Z, Regan PH, Korten W, Zielinska M, Salsac MD, Habs D, Thirolf PG, Ur CA, Bernards C, Casten RF, Cooper N, Werner V, Cakirli RB, Leoni S, Benzoni G, Bocchi G, Bottoni S, Crespi FCL, Fornal B, Cieplicka N, Szpak B, Petrache CM, Leguillon R, John R, Lorenz C, Massarczyk R, Schwengner R, Curien D, Lozeva R, Sengele L, Marginean N, Lica R. (2015) 'The (n,gamma) campaigns at EXILL'. E D P SCIENCES CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS, Dresden, GERMANY: 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) 93
  • Cieplicka N, Fornal B, Maier KH, Szpak B, Broda R, Krolas W, Pawlat T, Wrzesinski J, Janssens RVF, Carpenter MP, Chiara CJ, Hoffman CR, Kondev FG, Lauritsen T, Zhu S, Podolyak Z, Bowry M, Bunce M, Gelletly W, Kempley R, Reed M, Regan P, Walker P, Wilson E, Deo AY, Dracoulis G, Lane G, Rodriguez-Triguero C. (2014) 'ANGULAR DISTRIBUTIONS OF gamma RAYS FROM Bi-210 PRODUCED IN Pb-208+Pb-208 DEEP-INELASTIC REACTIONS'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Piaski, POLAND: 33rd Mazurian Lakes Conference on Physics 45 (2), pp. 205-210.
  • Calinescu S, Caceres L, Grevy S, Sorlin O, Sohler D, Stanoiu M, Negoita F, Clement E, Astabatyan R, Borcea C, Borcea R, Bowry M, Catford W, Dombradi Z, Franchoo S, Garcia R, Gillibert R, Guerin H, Thomas JC, Kuti I, Lukyanov S, Lepailleur A, Maslov V, Morfouace P, Mrazek J, Niikura M, Perrot L, Podolyak Z, Petrone C, Penionzhkevich Y, Roger T, Rotaru F, Stefan I, Vajta Z, Wilson E. (2014) 'STUDY OF THE NEUTRON-RICH ISOTOPE Ar-46 THROUGH INTERMEDIATE ENERGY COULOMB EXCITATION'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Piaski, POLAND: 33rd Mazurian Lakes Conference on Physics 45 (2), pp. 199-204.
  • Podolyak Z. (2012) 'Prolate-oblate shape transition in heavy neutron-rich nuclei'. IOP PUBLISHING LTD RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS, 2011, Univ Manchester, Manchester, ENGLAND: Rutherford Centennial Conference on Nuclear Physics 381
  • Rice S, Valencia E, Algora A, Tain JL, Regan PH, Podolyak Z, Agramunt J, Gelletly W, Nichols AL. (2012) 'Decay Heat Measurements Using Total Absorption Gamma-ray Spectroscopy'. IOP PUBLISHING LTD RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS, 2011, Univ Manchester, Manchester, ENGLAND: Rutherford Centennial Conference on Nuclear Physics 381
  • Bowry M, Podolyak Z, Kurcewicz J, Pietri S, Bunce M, Regan PH, Farinon F, Geissel H, Nociforo C, Prochazka A, Weick H, Allegro P, Benlliure J, Benzoni G, Boutachkov P, Gerl J, Gorska M, Gottardo A, Gregor N, Janik R, Knoebel R, Kojouharov I, Kubo T, Litvinov YA, Merchan E, Mukha I, Naqvi F, Pfeiffer B, Pfuetzner M, Plass W, Pomorski M, Riese B, Ricciardi MV, Schmidt K-H, Schaffner H, Kurz N, Bacelar AMD, Bruce AM, Farrelly GF, Alkhomashi N, Al-Dahan N, Scheidenberger C, Sitar B, Spiller P, Stadlmann J, Strmen P, Sun B, Takeda H, Tanihata I, Terashima S, Dobon JJV, Winfield JS, Wollersheim H-J, Woods PJ. (2012) 'Half-life Measurements of Isomeric States Populated in Projectile Fragmentation'. AMER INST PHYSICS NUCLEAR STRUCTURE AND DYNAMICS '12, Opatija, CROATIA: 2nd International Conference on Nuclear Structure and Dynamics 1491, pp. 317-320.
  • Mason PJR, Podolyak Z, Arginean NM, Regan PH, Alexander T, Algora A, Alharbi T, Bowry M, Britton R, Bucurescu D, Bruce AM, Bunce M, Cata-Danil G, Cata-Danil I, Cooper N, Deleanu D, Delion D, Filipescu D, Gelletly W, Glodariu T, Gheorghe I, Ghita D, Ilie G, Ivanova D, Kisyov S, Lalkovski S, Lica R, Liddick SN, Marginean R, Mihai C, Mulholland K, Negret A, Nita CR, Rice S, Roberts OJ, Sava T, Smith JF, Soederstroem P-A, Stevenson PD, Stroe L, Toma S, Townsley C, Werner V, Wilson E, Wood RT, Zamfir NV, Zhekova M. (2012) 'Li-7-Induced Reactions for Fast-Timing With LaBr3:Ce Detectors'. AMER INST PHYSICS NUCLEAR STRUCTURE AND DYNAMICS '12, Opatija, CROATIA: 2nd International Conference on Nuclear Structure and Dynamics 1491, pp. 93-96.
  • Alharbi T, Mason PJR, Regan PH, Marginean N, Podolyak Z, Algora A, Alazemi N, Bruce AM, Britton R, Bunce MR, Bucurescu D, Cooper N, Deleanu D, Filipescu D, Gelletly W, Ghita D, Glodariu T, Ilie G, Kisyov S, Lintott J, Lalkovski S, Liddick S, Mihai C, Mulholland K, Marginean R, Negret A, Nakhostin M, Roberts OJ, Rice S, Smith JF, Stroe L, Sava T, Townsley C, Wilson E, Werner V, Zhekova M, Zamfir NV. (2012) 'Electromagnetic Transition Rate Measurements in the N=80 Isotone, Ce-138'. IOP PUBLISHING LTD RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS, 2011, Univ Manchester, Manchester, ENGLAND: Rutherford Centennial Conference on Nuclear Physics 381
  • Mason PJR, Alharbi T, Regan PH, Marginean N, Podolyak Z, Alkhomashi N, Bender PC, Bowry M, Bostan M, Bucurescu D, Bruce AM, Cata-Danil G, Cata-Danil I, Chakrabarti R, Deleanu D, Detistov P, Erduran MN, Filipescu D, Garg U, Glodariu T, Ghita D, Ghugre SS, Kusoglu A, Marginean R, Mihai C, Nakhostin M, Negret A, Pascu S, Triguero CR, Sava T, Simpson EC, Sinha AK, Stroe L, Suliman G, Zamfir NV. (2012) 'Half-life of the I-pi=4(-) Intruder State in P-34 Using LaBr3:Ce Fast Timing'. IOP PUBLISHING LTD RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS, 2011, Univ Manchester, Manchester, ENGLAND: Rutherford Centennial Conference on Nuclear Physics 381
  • Caceres L, Sohler D, Grevy S, Force C, Sorlin O, Dombradi Z, Gaudefroy L, Achouri NL, Angelique JC, Azaiez F, Bayborodin D, Bastin B, Borcea R, Bourgeois C, Buta A, Buerger A, Chapman R, Dalouzy JC, Dlouhy Z, Drouard A, Elekes Z, Franchoo S, Iacob S, Laurent B, Lazar M, Liang X, Lienard E, Mrazek J, Nalpas L, Negoita F, Orr NA, Penionzhkevich Y, Podolyak Z, Pougheon F, Roussel-Chomaz P, Saint-Laurent MG, Stanoiu M, Stefan I, Nowacki F, Poves A. (2011) 'SHELLS AND SHAPES IN THE S-44 NUCLEUS'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Zakopane, POLAND: Conference on Nuclear Physics - Extremes of the Nuclear Landscape 42 (3-4), pp. 533-536.
  • Kempley RS, Podolyak Z, Bazzacco D, Gadea A, Farnea E, Valiente-Dobon JJ, Mengoni D, Recchia F, Sahin E, Gottardo A, Corradi L, Fioretto E, Szilner S, Anagnostatou V, Al-Dahan N, De Angelis G, Bellato M, Berti B, Bortolato D, Bowry M, Bunce M, Cocconi P, Colombo A, Dombradi Z, Fanin C, Gelletly W, Isocrate R, Ketenci S, Kondratyev N, Kuti I, Mason PJR, Michelagnoli C, Mijatovic T, Molini P, Montagnioli G, Montanari D, Nakhostin M, Napoli DR, Pellegrini D, Regan PH, Rampazzo G, Reiter P, Rosso D, Scarlassara F, Stefanini A, Singh P, Toniolo N, Ur CA. (2011) 'CROSS-COINCIDENCES IN THE Xe-136+Pb-208 DEEP-INELASTIC REACTION'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Zakopane, POLAND: Conference on Nuclear Physics - Extremes of the Nuclear Landscape 42 (3-4), pp. 717-720.
  • Gottardo A, Valiente-Dobón JJ, Benzoni G, Nicolini R, Núñez JA, Algora A, Al-Dahan N, Angelis GD, Ayyad Y, Alkhomashi N, Allegro PRP, Benlliure J, Boutachkov P, Bowry M, Bracco A, Bruce AM, Bunce M, Casarejos E, Cortes L, Crespi FCL, Camera F, Corsi A, Bacelar AMD, Deo A, Domingo-Pardo C, Doncel M, Dombradi Z, Engert T, Eppinger K, Farrelly GF, Farinon F, Gadea A, Geissel H, Gerl J, Goel N, Górska M, Grebosz J, Gregor E, Haberman T, Hoischen R, Janik R, Klupp S, Kojouharov I, Kurz N, Leoni S, Lunardi S, Mandal S, Menegazzo R, Mengoni D, Million B, Napoli DR, Naqvi F, Nociforo C, Pfützner M, Pietri S, Podolyak Z, Prochazka A, Prokopowicz W, Recchia F, Ribas RV, Reed MW, Regan PH, Rudolph D, Sahin E, Schaffner H, Sharma A, Sitar B, Siwal D, Steger K, Strmen P, Swan TPD, Szarka I, Walker PM, Wieland O, Weick H, Wollersheim HJ. (2011) 'Isomers in neutron-rich lead isotopes populated via the fragmentation of 238U at 1 GeV A'. Journal of Physics: Conference Series, 312 (SECTION 9)

    Abstract

    Neutron-rich nuclei beyond N = 126 in the lead region were populated by fragmenting a 238U beam at 1 GeV A on a Be target and then separated by the Fragment Separator (FRS) at GSI. Their isomeric decays were observed, enabling study of the shell structure of neutron-rich nuclei around the Z=82 shell closure. Some preliminary results are reported in this paper.

  • Gómez-Hornillos MB, Rissanen J, Taín JL, Algora A, Cano-Ott D, Agramunt J, Gorlychev V, Caballero R, Martínez T, Achouri L, Äysto J, Cortés G, Elomaa VV, Eronen T, García A, Hakala J, Jokinen A, Karvonen P, Kolhinen VS, Moore I, Parlog M, Penttilä H, Podolyak Z, Pretel C, Reponen M, Sonnenschein V, Valencia E. (2011) 'First measurements with the BEta deLayEd neutron detector (BELEN-20) at JYFLTRAP'. Journal of Physics: Conference Series, Vancouver, Canada: International Nuclear Physics Conference 2010 (INPC2010) 312 (SECTION 5)
  • Podolyak Z. (2010) 'PRESENT AND FUTURE OF HISPEC'. POLISH ACAD SCIENCES INST PHYSICS ACTA PHYSICA POLONICA B, Piaski, POLAND: 31st Mazurian Lakes Conference on Physics 41 (2), pp. 493-503.
  • Briz JA, Borge MJG, Maira A, Perea A, Tengblad O, Agramunt J, Algora A, Estevez E, Nacher E, Rubio B, Fraile LM, Deo A, Farrelly G, Gelletly W, Podolyak Z. (2010) 'Conversion coefficients of the isomeric state in 72Br'. AIP Conference Proceedings, La Rábida, Spain: LA RÁBIDA 2009, INTERNATIONAL SCIENTIFIC MEETING ON NUCLEAR PHYSICS: BASIC CONCEPTS IN NUCLEAR PHYSICS: THEORY, EXPERIMENTS AND APPLICATIONS 1231, pp. 203-204.

    Abstract

    In order to determine the Gamow‐Teller strength distribution for the N  =  Z nucleus 72Kr an experiment was performed with a Total Absorption Gamma Spectrometer. To fully accomplish this task it is crucial to determine the multipolarity of the low energy transitions as the spin‐parity of the daughter ground state has been debated. This is done by experimental determination of the conversion coefficients. Preliminary results for the multipolarity and conversion coefficients of the transition connecting the isomeric state at 101 keV with the 72Br ground state are presented.

  • Blazhev A, Braun N, Grawe H, Boutachkov P, Nara Singh S, Brock T, Liu Z, Wadsworth R, Górska M, Jolie J, Nowacki F, Pietri S, Domingo-Pardo C, Kojouharov I, Caceres L, Engert T, Farinon F, Gerl J, Goel N, Grȩbosz J, Hoischen R, Kurz N, Nociforo C, Prochazka A, Schaffner H, Steer S, Weick H, Wollersheim H-J, Ataç A, Bettermann L, Eppinger K, Faestermann T, Finke F, Geibel K, Hinke C, Gottardo A, Ilie G, Iwasaki H, Krücken R, Merchan E, Nyberg J, Pfützner M, Podolyák Z, Regan P, Reiter P, Rinta-Antila S, Rudolph D, Scholl C, Söderström P-A, Warr N, Woods P. (2010) 'High-energy excited states in 98Cd'. IOP Publishing Journal of Physics: Conference Series, Varna, Bulgaria: XVIII International School on Nuclear Physics, Neutron Physics and Applications 205 (1)
  • Podolyak Z, Steer SJ, Pietri S, Gorska M, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R, Gerl J, Wollersheim HJ, Grawe H, Maier KH, Becker F, Bednarczyk P, Caceres L, Doornenbal P, Geissel H, Grebosz J, Kelic A, Kojouharov I, Kurz N, Montes F, Prokopowicz W, Saito T, Schaffner H, Tashenov S, Heinz A, Kurtukian-Nieto T, Benzoni G, Pfuetzner M, Jungclaus A, Balabanski DL, Brandau C, Brown BA, Bruce AM, Catford WN, Cullen IJ, Dombradi Z, Estevez ME, Gelletly W, Ilie G, Jolie J, Jones GA, Kmiecik M, Kondev FG, Kruecken R, Lalkovski S, Liu Z, Maj A, Myalski S, Schwertel S, Shizuma T, Walker PM, Werner-Malento E, Wieland O. (2009) 'Structure of neutron-rich nuclei around the N=126 closed shell; the yrast structure of Au-205(126) up to spin-parity I-pi = (19/2(+))'. SPRINGER EUROPEAN PHYSICAL JOURNAL A, Ryn, POLAND: 5th International Conference on Exotic Nuclei and Atomic Masses (ENAM'08) 42 (3), pp. 489-493.
  • Gorska M, Grawe H, Caceres L, Algora A, Boehmer M, Boutachkov P, Eppinger K, Faestermann T, Fujita Y, Gadea A, Garnsworthy A, Gelletly W, Gerl J, Gernhaeuser R, Hinke C, Jungclaus A, Kojouharov I, Kruecken R, Maier L, Molina P, Pfuetzner M, Pietri S, Podolyak Z, Regan PH, Rubio B, Rudolph D, Wollersheim HJ. (2009) 'NUCLEAR STRUCTURE ADDRESSED AT GSI/RISING'. WORLD SCIENTIFIC PUBL CO PTE LTD INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, Dolny, POLAND: 15th Workshop on Nuclear Physics 18 (4), pp. 759-766.
  • Myalski S, Maj A, Podolyak Z, Becker F, Bednarczyk P, Benzoni G, Blank B, Brandau C, Bruce AM, Caceres L, Camera F, Catford WN, Cullen IJ, Dombradi Z, Doornenbal P, Estevez E, Garnsworthy AB, Geissel H, Gelletly W, Gerl J, Corska M, Grawe H, Grebosz J, Heinz A, Hoischen R, Ilie G, Jones GA, Jungclaus A, Kelic A, Kmiecik M, Kojouharov I, Kondev FG, Kurtukian-Nieto T, Kurz N, Lalkovski S, Liu Z, Montes F, Pfuetzner M, Pietri S, Prokopowicz W, Regan PH, Rudolph D, Saito T, Schaffner H, Schwertel S, Shizuma T, Simon AJ, Steer SJ, Tashenov S, Walker PM, Werner-Malento E, Wieland O, Wollersheim HJ. (2009) 'ISOMERIC RATIOS FOR NUCLEI WITH Z=62-67 AND A=142-152 PRODUCED IN THE RELATIVISTIC FRAGMENTATION OF Pb-208'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 879-883.
  • Alkhomashi N, Regan PH, Podoyak Z, Pietri SB, Garnsworthy AB, Steer SJ, Benlliure J, Caserejos E, Gorska M, Gerl J, Wollersheim HJ, Grebosz J, Kurz N, Kojouharov I, Schaffner H, Alcora A, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Caceres L, Doornenbal P, Bacelar AMD, Cullen IJ, Estevez ME, Farrelly G, Fujita Y, Gelletly W, Hoischen R, Kumar R, Lalkovski S, Liu Z, Mihai C, Molina F, Muecher D, Rubio B, Tamii A, Tashenov S, Valiente-Dobon JJ, Walker PM, Woods PJ. (2009) 'beta(-)-DELAYED AND ISOMER SPECTROSCOPY OF NEUTRON-RICH Ta AND W ISOTOPES'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 875-878.
  • Farrelly GF, Podolyak Z, Steer SJ, Pietri S, Xu FR, Werner-Malento E, Shizuma T, Regan PH, Rudolph D, Garnsworthy AB, Hoischen R, Gorska M, Gerl J, Wollersheim HJ, Kurtukian-Nieto T, Benzoni G, Becker F, Bednarczyk P, Caceres L, Doornenbal P, Geisserl H, Grebosz J, Kelic A, Kojouharov I, Kurz N, Montes F, Prokopowicz W, Saito T, Schaffner H, Tashenov S, Heinz A, Pfuezner M, Jungclaus A, Balabanski DL, Brandau C, Bruce AM, Catford WN, Cullen IJ, Dombradi Z, Estevez E, Gelletly W, Ilie G, Jolie J, Jones GA, Kmiecik M, Kondev FG, Kruecken R, Lalkovski S, Liu HL, Liu Z, Maj A, Myalski S, Schwerrel S, Walker PM, Wieland O. (2009) 'REVISION OF THE K-ISOMER IN W-190(116)'. WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 885-888.
  • Wadsworth R, Singh BSN, Steer AN, Jenkins DC, Bentley MA, Brock T, Davies P, Glover R, Pattabiraman NS, Scholey C, Grahn T, Greenlees PT, Jones P, Jakobsson U, Julin R, Juutinen S, Ketelhut S, Leino M, Nyman M, Perua P, Pakarinen J, Rahkila P, Ruotslainen P, Sorri J, Uusitalo J, Lister CJ, Butler PA, Dimmock M, Joss DT, Thomson J, Rinta-Antila S, Cederwall B, Hadinia B, Sandzelius M, Atac A, Betterman L, Blazhev A, Braun N, Finke F, Geibel K, Ilie G, Iwasaki H, Jolie J, Reiter P, Scholl C, Warr N, Boutachkov P, Caceres L, Domingo C, Engert T, Farinon F, Gerl J, Goel N, Gorska M, Grawe H, Kurz N, Kojuharov I, Pietri S, Nociforo C, Prochazka A, Wollersheim H-J, Eppinger K, Faestermann T, Hinke C, Hoischen R, Kruecken R, Gottardo A, Liu Z, Woods P, Grebosz J, Merchant E, Nyberg J, Soderstrom P-A, Podolyak Z, Regan P, Steer S, Pfutzner M, Rudolph D. (2009) 'THE NORTHWEST FRONTIER: SPECTROSCOPY OF N similar to Z NUCLEI BELOW MASS 100'. POLISH ACAD SCIENCES INST PHYSICS ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 611-620.
  • Morales AI, Benlliure J, Regan PH, Podolyak Z, Gorska M, Alkhomashi N, Pietri S, Kumar R, Casarejos E, Agramunt J, Algora A, Alvarez-Pol H, Benzoni G, Blazhev A, Boutachkov P, Bruce AM, Caceres LS, Cullen IJ, Bacelar AMD, Doornenbal P, Dragosavac D, Estevez ME, Farrelly G, Fujita Y, Garnsworthy AB, Gelletly W, Gerl J, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Lalkovski S, Liu Z, Perez-Loureiro D, Prokopowicz W, Mihai C, Molina F, Muecher D, Rubio B, Schapffner H, Steer SJ, Tamii A, Tashenov S, Dobon JJV, Verma S, Walker PM, Wollersheim HJ, Woods PJ. (2009) 'beta-DELAYED gamma-RAY SPECTROSCOPY OF HEAVY NEUTRON RICH NUCLEI "SOUTH" OF LEAD'. POLISH ACAD SCIENCES INST PHYSICS ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 867-870.
  • Franchoo S, Achouri NL, Algora A, Al-Khatib A, Angelique J-C, Azaiez F, Baiborodin D, Bastin B, Beaumel D, Belleguic M, Benzoni G, Blumenfeld Y, Borcea C, Borcea R, Bourgeois C, Bringel P, Brown BA, Burger A, Buta A, Chapman R, Clement E, Dalouzy J-C, Dlouhy Z, Dombradi Z, Drouart A, Elekes Z, Engelhardt C, Fortier S, Fueloep Z, Gaudefroy L, Gelin M, Gibelin J, Goergen A, Grevy S, Guillemaud-Mueller D, Hammache F, Huebel H, Iacob S, Ibrahim F, Kemper K, Kerek A, Korten W, Krasznahorkay A, Kratz K-L, Laurent B, Lazar M, Lebhertz D, Lewitowiczk M, Liang X, Lienard E, Lukyanov S, Mandal S, Monrozeau C, Mrazek J, Nalpas L, Navin A, Negoita F, Nowacki F, Orr N, Ostrowski A, Otsuka T, Pantelica D, Penionzhkevich Y, Piekarewicz J, Podolyak Z, Pollacco E, Pougheon F, Poves A, Rotaru F, Roussel-Chomaz P, Rich E, Scarpaci J-A, Saint-Laurent M-G, Savajols H, Sletten G, Sohler D, Sorlin O, Stanoiu M, Stefan I, Suzuki T, Theisen C, Timar J, Timis C, Tryggestad E, Verney D, Williams S, Yamamoto A. (2009) 'RECENT RESULTS FROM GANIL'. POLISH ACAD SCIENCES INST PHYSICS ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 419-425.
  • Bacelar AMD, Bruce AM, Podolyak Z, Lalkovski S, Pietri S, Al-Dahan N, Gorska M, Algora A, Alkhomashi N, Benlliure J, Boutachkov P, Bracco A, Calore E, Casarejos E, Cullen IJ, Deo AY, Detistov P, Dombradi Z, Domingo-Pardo C, Doncel M, Farinon F, Farrelly GF, Geissel H, Gelletly W, Gerl J, Goel N, Grebosz J, Hoischen R, Kojouharov I, Kurz N, Leoni S, Molina F, Morales AI, Montanari D, Musumarra A, Nicolini R, Napoli DR, Nociforo C, Prochazka A, Prokopowicz W, Regan PH, Rubio B, Rudolph D, Verma S, Steer SJ, Strmen P, Swan TPD, Szarka I, Valiente-Dobon JJ, Walker PM, Weick H, Wollersheim HJ. (2009) 'ANGULAR MOMENTUM POPULATION IN FRAGMENTATION REACTIONS'. POLISH ACAD SCIENCES INST PHYSICS ACTA PHYSICA POLONICA B, Zakopane, POLAND: 43rd Zakopane Conference on Nuclear Physics 40 (3), pp. 889-892.
  • Regan PH, Alkhomashi N, Al-Dahan N, Podolyák Z, Suckling EB, Stevenson PD, Pietri SB, Steer SJ, Garnsworthy AB, Gelletly W, Benlliure J, Morales AI, Gerl J, Górska M, Wollersheim HJ, Kumar R, Grebosz J, Algora A, Benzoni G, Boutachkov P, Bruce AM, Casarejos E, Cullen IJ, Bacelar AMD, Blazhev A, Estevez ME, Farrelly G, Fujita Y, Hoischen R, Lalkovski S, Liu Z, Kojouharov I, Kurz N, Mihai C, Molina F, Mücher D, Rubio B, Schaffner H, Tashenov S, Tamii A, Dobón JJV, Walker PM, Woods PJ. (2009) 'New insights into the structure of exotic nuclei using the rising active stopper'. AIP Conference Proceedings, 1090, pp. 122-129.

    Abstract

    This conference paper outlines the operation and some of the preliminary physics results using the GSI RISING active stopper. Data are presented from an experiment using combined isomer and beta-delayed gamma-ray spectroscopy to study low-lying spectral and decay properties of heavy-neutron-rich nuclei around A-190 produced following the relativistic projectile fragmentation of 208Pb primary beam. The response of the RISING active stopper detector is demonstrated for both the implantation of heavy secondary fragments and in-situ decay of beta-particles. Beta-delayed gamma-ray spectroscopy following decays of the neutron- rich nucleus 194Re is presented to demonstrate the experimental performance of the set-up. The resulting information inferred from excited states in the W and Os daughter nuclei is compared with results from Skyrme Hartree-Fock predictions of the evolution of nuclear shape. © 2009 American Institute of Physics.

  • Podolyák Z, Steer SJ, Farrelly G, Górska M, Grawe H, Maier HK, Regan PH, Benlliure J, Pietri S, Gerl J, Wollersheim HJ. (2009) 'Structure of neutron-rich N=126 closed shell nuclei'. AIP Conference Proceedings, 1165, pp. 86-89.

    Abstract

    Abstract.: A series of experiments devoted to the study of the neutron-rich N∼126 region have been performed at GSI, Darmstadt, within the Rare Isotopes Investigations at GSI (RISING) project. The highlights of the experimental residts from these highly successful experiments include the first observation of excited states in three neutron-rich N=126 closed shell nuclei: (i) In 205AU79 the conversion electron decay of the πh11/2-1 seconds lived isomeric state into the πd3/2-1 ground-state has been observed. In addition the yrast structure has been established up to spin-parity (19/2+) via the observation of the decay of an isomeric state with configuration π(h 11/2-1)10 (s11/2-1) (ii) 204Pt78, the yrast sequence has been observed following the internal decay of Iπ=(5-), (7-) and (10+) isomeric states; (iii) In 203Ir77 excited states have been observed following the decay of an isomeric state with structure 'similar' to that in its 205Au isotone. Shell model calcinations have been performed in order to get a deeper understanding of the structure of these N=126 nuclei. It was found that in order to get a good description for all available information on the N=l 26 isotones below lead, both on excitation energies and transition strengths, small modifications of the standard two-body matrix elements were reqiured. © 2009 American Institute of Physics.

  • Musumarra A, Farinon F, Nociforo C, Geissel H, Baur G, Behr K-H, Bonasera A, Bosch F, Boutin D, Brünle A, Chen L, Del Zoppo A, Dimopoulou C, Di Pietro A, Faestermann T, Figuera P, Hagino K, Janik R, Karagiannis C, Kienle P, Kimura S, Knöbel R, Kojouharov I, Kozhuharov C, Kuboki T, Kurcewicz J, Kurz N, Langanke K, Lattuada M, Litvinov SA, Litvinov YA, Martinez-Pinedo G, Mazzocco M, Montes F, Motizuki Y, Nolden F, Ohtsubo T, Okuma Y, Patyk Z, Pellegritf MG, Pla W, Pietri S, Podolyak Z, Prochazka A, Scheidenberger C, Scuderf V, Sitar B, Steck M, Strmen P, Sun B, Suzuki T, Szarka I, Torresi D, Weick H, Winfield JS, Winkler M, Wollersheim HJ, Yamaguchi T. (2009) 'Electron screening effects on a-decay'. AIP Conference Proceedings, Dubrovnik, Croatia: NUCLEAR STRUCTURE AND DYNAMICS ’09 1165, pp. 415-418.

    Abstract

    An open problem in Nuclear Astrophysics concerns the understanding of electron‐screening effects on nuclear reaction rates at stellar energies. In this framework, we have proposed to investigate the influence of the electron cloud on α‐decay by measuring Q‐values and α‐decay half‐lives of fully stripped, H‐like and He‐like ions. These kinds of measurements have been feasible just recently for highly‐charged radioactive nuclides by fragmentation of 238U at relativistic energies at the FRS‐ESR facility at GSI. In this way it is possible to produce, efficiently separate and store highly‐charged α‐emitters. Candidates for the proposed investigation were carefully selected and will be studied by using the Schottky Mass Spectroscopy technique. In order to establish a solid reference data set, lifetimes and Qα‐value measurements of the corresponding neutrals have been performed directly at the FRS, by implanting the separated ions into an active Silicon stopper.

  • Al-Dahan N, Podolyak Z, Regan PH, Steer SJ, Alkhomashi N, Bacelar AMD, Gorska M, Pietri SB, Gelletly W, Walker PM, Farrelly G, Morales AI, Deo AY, Cullen IJ, Gerl J, Domingo-Pardo C, Verma S, Swan T, Wollersheim HJ, Bruce AM, Lalkovski S, Benlliure J, Algora A, Boutachkov P, Bracco A, Calore E, Casarejos E, Detistov P, Dombradi Z, Doncel M, Farinon F, Geissel H, Goel N, Grebosz J, Hoischen R, Kojouharov I, Leoni S, Molina F, Montanari D, Musumarra A, Nicolini R, Napoli DR, Nociforo C, Rubio B, Prochazka A, Rudolph D, Strmen P, Szarka I, Valiente-Dobon JJ, Weick H. (2009) 'Structure of N >= 126 nuclei produced in fragmentation of (238)U'. AMER INST PHYSICS CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS, Univ Cologne, Inst Nucl Phys, Cologne, GERMANY: 13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics 1090, pp. 145-148.
  • Podolyak Z. (2008) 'From RISING to HISPEC/DESPEC'. ELSEVIER SCIENCE BV NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Deauville, FRANCE: 15th International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications 266 (19-20), pp. 4589-4594.
  • Fujita Y, Rubio B, Adachi T, Molina F, Algora A, Berg GPA, von Brentano P, Buscher J, Cocolios T, De Frenne D, Fransen C, Fujita H, Fujita K, Gelletly W, Hatanaka K, Huyse M, Ivanov O, Kudryavtsev Y, Jacobs E, Jordan D, Nakanishi K, Negret A, Pauwels D, Perez-Cerdan AB, Pietralla N, Podolyak Z, Popescu L, Raabe R, Sakemi Y, Sawicka M, Shimbara Y, Shimizu Y, Shizuma T, Tameshige Y, Tamii A, Van den Bergh P, Van de Walle J, Van Duppen P, Yosoi M, Zell KO. (2008) 'Gamow-Teller transitions in exotic pf-shell nuclei relevant to supernova explosion'. IOP PUBLISHING LTD JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, Dresden, GERMANY: 3rd Europhysics Conference on Nuclear Physics in Astrophysics (NPA3) 35 (1)
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