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Professor William Gelletly


Emeritus Professor of Physics
+44 (0)1483 686807
06 BC 04

Academic and research departments

Department of Physics.

My publications

Publications

D Bucurescu, Z Podolyak, C Rusu, G de Angelis, YH Zhang, G Cata-Danil, I Cata-Danil, M Ivascu, N Marginean, R Marginean, LC Mihailescu, GA Suliman, PH Regan, W Gelletly, SD Langdown, JJV Dobon, D Bazzacco, S Lunardi, CA Ur, M Axiotis, A Gadea, E Farnea, M Ionescu-Bujor, A Iordachescu, T Kroll, T Martinez, PG Bizzetti, R Broda, NH Medina, B Quintana, B Rubio (2005)High-spin states in the nuclei Y-91 and Nb-95, In: PHYSICAL REVIEW C71(3)ARTN 0pp. ?-? AMERICAN PHYSICAL SOC
S Myalski, A Maj, Z Podolyak, M Kmiecik, P Bednarczyk, J Grebosz, PH Regan, AB Garnsworthy, S Pietri, D Rudolph, SJ Steer, F Becker, J Gerl, M Gorska, H Grawe, I Kojouharov, H Schaffner, HJ Wollersheim, W Prokopowicz, G Benzoni, B Blank, C Brandau, AM Bruce, L Caceres, F Camera, WN Catford, IJ Cullen, Z Dombradi, P Doornenbal, E Estevez, H Geissel, W Gelletly, A Heinz, R Hoischen, G Ilie, GA Jones, A Jungclaus, A Kelic, FG Kondev, T Kurtukian-Nieto, N Kurz, S Lalkovski, Z Liu, F Montes, M Pfuetzner, T Saito, T Shizuma, AJ Simons, S Schwertel, S Tachenov, PM Walker, E Werner-Malento, O Wieland (2012)STUDY OF ISOMER PRODUCTION RATES FOR A=142-152 AND Z=62-67 IN FRAGMENTATION OF A RELATIVISTIC Pb-208 BEAM, In: ACTA PHYSICA POLONICA B43(2)pp. 253-259 WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
CS PURRY, PM WALKER, GD DRACOULIS, T KIBEDI, S BAYER, AM BRUCE, AP BYRNE, M DASGUPTA, W GELLETLY, F KONDEV, PH REGAN, C THWAITES (1995)ROTATION OF AN 8-QUASI-PARTICLE ISOMER, In: PHYSICAL REVIEW LETTERS75(3)pp. 406-409 AMERICAN PHYSICAL SOC
N Alkhomashi, PH Regan, Z Podolyák, S Pietri, AB Garnsworthy, SJ Steer, J Benlliure, E Caserejos, RF Casten, J Gerl, HJ Wollersheim, J Grebosz, G Farrelly, M Górska, I Kojouharov, H Schaffner, A Algora, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, AMD Bacelar, IJ Cullen, L Cáceres, P Doornenbal, ME Estevez, Y Fujita, W Gelletly, R Hoischen, R Kumar, N Kurz, S Lalkovski, Z Liu, C Mihai, F Molina, AI Morales, D Mücher, W Prokopowicz, B Rubio, Y Shi, A Tamii, S Tashenov, JJ Valiente-Dobón, PM Walker, PJ Woods, FR Xu (2009)β - Dcopy of neutron-rich tantalum nuclei: Shape evolution in neutron-rich tungsten isotopes, In: Physical Review C - Nuclear Physics80(6)064308pp. 1-12
SF Ashley, A Linnemann, J Jolie, PH Regan, K Andgren, A Dewald, EA McCutchan, B Melon, O Moeller, NV Zamfir, L Amon, N Boelaert, RB Cakirli, RF Casten, RM Clark, C Fransen, W Gelletly, G Gurdal, M Heidemann, KL Keyes, MN Erduran, DA Meyer, A Papenberg, C Plettner, G Rainovski, RV Ribas, NJ Thomas, J Vinson, DD Warner, V Werner, E Williams, KO Zell (2007)Lifetime determination of excited states in Cd-106, In: ACTA PHYSICA POLONICA B38(4)pp. 1385-1388
SF Ashley, PH Regan, K Andgren, EA McCutchan, NV Zamfir, L Amon, RB Cakirli, RF Casten, RM Clark, W Gelletly, G Guerdal, KL Keyes, DA Meyer, MN Erduran, A Papenberg, N Pietralla, C Plettner, G Rainovski, RV Ribas, NJ Thomas, J Vinson, DD Warner, V Werner, E Williams, HL Liu, FR Xu (2007)Intrinsic state lifetimes in (103)Pd and (106,107)Cd, In: PHYSICAL REVIEW C76(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
JJ Valiente-Dobon, CJ Pearson, PH Regan, PJ Sellin, W Gelletly, E Morton, A Boston, M Descovich, PJ Nolan, J Simpson, I Lazarus, D Warner (2003)Performance of a 6x6 segmented germanium detector for gamma-ray tracking, In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT505(1-2)pp. 174-177
AY Deo, Z Podolyak, PM Walker, A Algora, B Rubio, J Agramunt, LM Fraile, N Al-Dahan, N Alkhomashi, JA Briz, E Estevez, G Farrelly, W Gelletly, A Herlert, U Koester, A Maira, S Singla (2010)Structures of Po-201 and Rn-205 from EC/beta(+)-decay studies, In: PHYSICAL REVIEW C81(2)ARTN 0pp. ?-? AMER PHYSICAL SOC
JG Narro, C Longour, PH Regan, B Blank, CJ Pearson, M Lewitowicz, C Miehe, W Gelletly, D Appelbe, L Axelsson, AM Bruce, WN Catford, C Chandler, RM Clark, DM Cullen, S Czajkowski, JM Daugas, P Dessagne, A Fleury, L Frankland, J Giovinazzo, B Greenhalg, R Grzywacz, M Harder, KL Jones, N Kelsall, T Kszczot, RD Page, AT Reed, O Sorlin, R Wadsworth (2001)Fermi superallowed beta(+) decays and T=1 ground states of heavy odd-odd N=Z nuclei, In: PHYSICAL REVIEW C63(4)ARTN 04430 AMERICAN PHYSICAL SOC
E Grodner, A Gadea, P Sarriguren, SM Lenzi, J Grebosz, JJ Valiente-Dobon, A Algora, M Gorska, PH Regan, D Rudolph, G de Angelis, J Agramunt, N Alkhomashi, LA Susam, D Bazzacco, J Benlliure, G Benzoni, P Boutachkov, A Bracco, L Caceres, RB Cakirli, FCL Crespi, C Domingo-Pardo, M Doncel, Z Dombradi, P Doornenbal, E Farnea, E Ganioglu, W Gelletly, J Gerl, A Gottardo, T Hueyuek, N Kurz, S Leoni, D Mengoni, F Molina, AI Morales, R Orlandi, Y Oktem, RD Page, D Perez, S Pietri, Z Podolyak, A Poves, B Quintana, S Rinta-Antila, B Rubio, BSN Singh, AN Steer, S Verma, R Wadsworth, O Wieland, HJ Wollersheim (2014)Hindered Gamow-Teller Decay to the Odd-Odd N = Z Ga-62: Absence of Proton-Neutron T=0 Condensate in A=62, In: PHYSICAL REVIEW LETTERS113(9)ARTN 09250 AMER PHYSICAL SOC
SJ Williams, MA Bentley, DD Warner, AM Bruce, JA Cameron, MP Carpenter, P Fallon, L Frankland, W Gelletly, RVF Janssens, DT Joss, CD O'Leary, CJ Lister, A Poves, PH Regan, P Reiter, B Rubio, D Seweryniak, CE Svensson, SM Vincent (2003)Anomalous Coulomb matrix elements in the f(7/2) shell, In: PHYSICAL REVIEW C68(1)ARTN 01130 AMERICAN PHYSICAL SOC
T Alharbi, PJR Mason, PH Regan, N Marginean, Z Podolyak, A Algora, N Alazemi, AM Bruce, R Britton, MR Bunce, D Bucurescu, N Cooper, D Deleanu, D Filipescu, W Gelletly, D Ghita, T Glodariu, G Ilie, S Kisyov, J Lintott, S Lalkovski, S Liddick, C Mihai, K Mulholland, R Marginean, A Negret, M Nakhostin, OJ Roberts, S Rice, JF Smith, L Stroe, T Sava, C Townsley, E Wilson, V Werner, M Zhekova, NV Zamfir, S Freeman, A Andreyev, A Bruce, A Deacon, D Jenkins, D Joss, D MacGregor, P Regan, J Simpson, G Tungate, B Wadsworth, D Watts (2012)Electromagnetic Transition Rate Measurements in the N=80 Isotone, Ce-138, In: RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS381ARTN 0pp. ?-? IOP PUBLISHING LTD
E Nacher, A Algora, B Rubio, J L Tain, D Cano-Ott, S Courtin, P Dessagne, F Marechal, C Miehe, E Poirier, M J Borge, D Escrig, A Jungclaus, P Sarriguren, O Tengblad, W Gelletly, L M Fraile, G L Scornet (2004)Deformation of the N = Z Nucleus Sr-76 Using Beta-Decay Studies, In: Physical Review Letters92(23)

A novel method of deducing the deformation of the N=Z nucleus Sr-76 is presented. It is based on the comparison of the experimental Gamow-Teller strength distribution B(GT) from its beta decay with the results of quasi-random-phase approximation calculations. This method confirms previous indications of the strong prolate deformation of this nucleus in a totally independent way. The measurement has been carried out with a large total absorption gamma spectrometer, "Lucrecia," newly installed at CERN-ISOLDE.

PH Regan, GA Jones, Z Podolyak, G de Angelis, YH Zhang, A Gadea, CA Ur, M Abdullah, M Axiotis, D Bazzacco, R Broda, D Bucurescu, E Farnea, W Gelletly, M Ionescu-Bujor, A Iordachescu, T Kroell, SD Langdown, S Lenzi, S Lunardi, N Marginean, T Martinez, N Medina, R Menegazzo, DR Napoli, B Quintana, B Rubio, C Rusu, R Schwenger, D Tonev, JJ Valiente-Dobon, W von Oertzen, G Wollel (2006)Nuclear structure and reaction mechanism studies with multinucleon reactions, In: FUSION06: Reaction Mechanisms and Nuclear Structure at the Coulomb Barrier853pp. 271-276
P. H. Regan, T. M. Menezes, C. J. Pearson, W. Gelletly, C. S. Purry, P. M. Walker, S. Juutinen, R. Julin, K. Helariutta, A. Savelius, P. Jones, P. Jämsen, M. Muikku, P. A. Butler, G. Jones, P. Greenlees (1997)Observation of (h11/2)2 neutron alignments in 100Mo, 104Ru, and 108Pd using deep inelastic reactions, In: Physical Review C55(2305)pp. 2305-2313
K. Andgren, Zs. Podolyák, A. Dewald, F. R. Xu, A. Algora, M. Axiotis, D. Bazzacco, P. G. Bizzeti, A. M. Bizzeti-Sona, B. Cederwall, G. de Angelis, E. Farnea, A. Fitzler, A. Gadea, W. Gelletly, S. Lunardi, O. HASH(0xa160c18) Möller, N. Marginean, T. Martinez, T. Pissulla, C. Rusu, C. A. Ur, R. VenturellI, P. M. Walker, C. Wheldon (2005)Lifetime measurements of normal deformed states in 71165Lu, In: Physical Review C71(014312)
A-A Zakari-Issoufou, M Fallot, A Porta, A Algora, JL Tain, E Valencia, S Rice, VM Bui, S Cormon, M Estienne, J Agramunt, J Aysto, M Bowry, JA Briz, R Caballero-Folch, D Cano-Ott, A Cucoanes, V-V Elomaa, T Eronen, E Estevez, GF Farrelly, AR Garcia, W Gelletly, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, MD Jordan, A Kankainen, P Karvonen, VS Kolhinen, FG Kondev, T Martinez, E Mendoza, F Molina, I Moore, AB Perez-Cerdan, Z Podolyak, H Penttila, PH Regan, M Reponen, J Rissanen, B Rubio, T Shiba, AA Sonzogni, C Weber (2015)Total Absorption Spectroscopy Study of Rb-92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape, In: PHYSICAL REVIEW LETTERS115(10)ARTN 10250 AMER PHYSICAL SOC
C Wheldon, JJ Valiente-Dobon, PH Regan, CJ Pearson, CY Wu, JF Smith, AO Macchiavelli, D Cline, RS Chakrawarthy, R Chapman, M Cromaz, P Fallon, SJ Freeman, A Gorgen, W Gelletly, A Hayes, H Hua, SD Langdown, IY Lee, X Liang, Z Podolyak, G Sletten, R Teng, D Ward, DD Warner, AD Yamamoto (2004)Multi-quasi particle states in W-184 via multi-nucleon transfer, In: EUROPEAN PHYSICAL JOURNAL A20(3)pp. 365-369 SPRINGER
N Al-Dahan, PH Regan, Z Podolyák, PM Walker, N Alkhomashi, GD Dracoulis, G Farrelly, J Benlliure, SB Pietri, RF Casten, PD Stevenson, W Gelletly, SJ Steer, AB Garnsworthy, E Casarejos, J Gerl, HJ Wollersheim, J Grebosz, M Górska, I Kojouharov, H Schaffner, A Algora, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, IJ Cullen, AM Denis Bacelar, AY Deo, ME Estevez, Y Fujita, R Hoischen, R Kumar, S Lalkovski, Z Liu, PJ Mason, C Mihai, F Molina, D Mücher, B Rubio, A Tamii, S Tashenov, JJ Valiente-Dobón, PJ Woods (2012)Multiple β - Decaying states in 194Re: Shape evolution in neutron-rich osmium isotopes, In: Physical Review C - Nuclear Physics85(3)034301pp. ?-? American Physical Society

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.

D Bucurescu, C Rusu, N Marginean, CA Ur, G de Angelis, L Corradi, D Bazzacco, S Beghini, F Della Vedova, G Duchene, E Farnea, T Faul, E Fioretto, A Gadea, W Gelletly, B Guiot, M Ionescu-Bujor, A Iordachescu, SD Landown, SM Lenzi, S Lunardi, P Mason, C Mihai, R Marginean, R Menegazzo, G Montagnoli, D Napoli, Z Podolyak, PH Regan, F Scarlassara, AM Stefanini, G Suliman, S Szilner, M Trotta, JJ Valiente-Dobon, YH Zhang (2007)gamma-ray spectroscopy of the neutron-rich nuclei (89)Rb, (92)Y, and (93)Y with multinucleon transfer reactions, In: PHYSICAL REVIEW C76(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
R Caballero-Folch, C Domingo-Pardo, JL Taín, G Cortés, J Agramunt, A Algora, F Ameil, Y Ayyad, J Benlliure, M Bowry, F Calviño, D Cano-Ott, T Davinson, I Dillmann, A Estrade, A Evdokimov, T Faestermann, F Farinon, D Galaviz, A García-Rios, H Geissel, W Gelletly, R Gernhäuser, MB Gómez-Hornillos, C Guerrero, M Heil, C Hinke, R Knöbel, I Kojouharov, J Kurcewicz, N Kurz, Y Litvinov, L Maier, J Marganiec, M Marta, T Martínez, F Montes, I Mukha, DR Napoli, C Nociforo, C Paradela, S Pietri, Z Podolyák, A Prochazka, S Rice, A Riego, B Rubio, H Schaffner, C Scheidenberger, K Smith, E Sokol, K Steiger, B Sun, M Takechi, D Testov, H Weick, E Wilson, JS Winfield, R Wood, P Woods, A Yeremin (2013)β-delayed neutron emission measurements around the third r-process abundance peak, In: AIP Conference Proceedings1541pp. 137-139

This contribution summarizes an experiment performed at GSI (Germany) in the neutron-rich region beyond N=126. The aim of this measurement is to provide the nuclear physics input of relevance for r-process model calculations, aiming at a better understanding of the third r-process abundance peak. Many exotic nuclei were measured around 211Hg and 215Tl. Final ion identification diagrams are given in this contribution. For most of them, we expect to derive halflives and and β-delayed neutron emission probabilities. The detectors used in this experiment were the Silicon IMplantation and Beta Absorber (SIMBA) detector, based on an array of highly segmented silicon detectors, and the BEta deLayEd Neutron (BELEN) detector, which consisted of 30 3He counters embedded in a polyethylene matrix. © 2013 AIP Publishing LLC.

S Mohammadi, PH Regan, SM Vincent, D Blumenthal, M Carpenter, CN Davids, W Gelletly, RVF Janssens, CJ Lister, CJ Pearson, J Simpson, D Seweryniak, J Schwartz, DD Warner (1999)High spin states in Ni-58, In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS25(4)pp. 909-912
SJ Steer, ZS PodolyÁk, S Pietri, M GÓrska, GF Farrelly, PH Regan, D Rudolph, AB Garnsworthy, R Hoischen, J Gerl, HJ Wollersheim, H Grawe, KH Maier, F Becker, P Bednarczyk, L CÁceres, P Doornenbal, H Geissel, J Grbosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, T Kurtukian-Nieto, G Benzoni, M PfÜtzner, A Jungclaus, DL Balabanski, C Brandau, A Brown, AM Bruce, WN Catford, IJ Cullen, Z DombrÁdi, ME Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, R KrÜcken, S Lalkovski, Z Liu, A Maj, S Myalski, S Schwertel, T Shizuma, PM Walker, E Werner-Malento, O Wieland (2009)Isomeric decay studies in neutron-rich N ≈ 126 nuclei, In: International Journal of Modern Physics E18(4)pp. 1002-1007

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.

E Valencia, A Algora, JL Tain, S Rice, J Agramunt, AA Zakari-Issoufou, A Porta, M Fallot, MD Jordan, F Molina, E Estevez, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V Eloma, T Eronen, A Garcia, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, FG Kondev, T Martinez, I Moore, J Rissanen, J Äystö, H Penttilä, A Kankainen, B Rubio, W Gelletly, A Perez, Z Podolyak, PH Regan, GF Farrelly, C Weber, E Mendoza (2013)Total absorption γ-ray spectroscopy of beta delayed neutron emitters, In: AIP Conference Proceedings1541pp. 161-162

Preliminary results of the data analysis of the beta decay of 94Rb using a novel - segmented- total absorption spectrometer are shown in this contribution. This result is part of a systematic study of important contributors to the decay heat problem in nuclear reactors. In this particular case the goal is to determine the beta intensity distribution below the neutron separation energy and the gamma/beta competition above. © 2013 AIP Publishing LLC.

SM Vincent, PH Regan, S Mohammadi, W Gelletly, D Blumenthal, MP Carpenter, CN Davids, RVF Janssens, CJ Lister, CJ Pearson, J Simpson, D Seweryniak, J Schwartz, DD Warner (1999)A yrast study of the A=61 isobars Cu-61(29) and Zn-61(30), In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS25(4)pp. 941-943
SM Vincent, PH Regan, D Blumenthal, M Carpenter, CN Davids, W Gelletly, RVF Janssens, CJ Lister, D Seweryniak, J Schwartz, J Simpson, DD Warner (1999)Discrete line spectroscopy of Ga-62(31) with AYEBALL, In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS25(4)pp. 679-683
Z Podolyak, GF Farrelly, PH Regan, AB Garnsworthy, SJ Steer, M Gorska, J Benlliure, E Casarejos, S Pietri, J Gerl, HJ Wollersheim, R Kumar, F Molina, A Algora, N Alkhomashi, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, L Caceres, IJ Cullen, AMD Bacelar, P Doornenbal, ME Estevez, Y Fujita, W Gelletly, H Geissel, H Grawe, J Grebosz, R Hoischen, I Kojouharov, S Lalkovski, Z Liu, KH Maier, C Mihai, D Muecher, B Rubio, H Schaffner, A Tamii, S Tashenov, JJ Valiente-Dobon, PM Walker, PJ Woods (2009)Proton-hole excitation in the closed shell nucleus Au-205, In: PHYSICS LETTERS B672(2)pp. 116-119 ELSEVIER SCIENCE BV
SJ Steer, Z Podolyak, S Pietri, M Gorska, PH Regan, D Rudolph, E Werner-Malento, AB Garnsworthy, R Hoischen, J Gerl, HJ Wollersheim, KH Maier, H Grawe, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Greabosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, M Pfuetzner, T Kurtukian-Nieto, G Benzoni, A Jungclaus, DL Balabanski, C Brandau, BA Brown, AM Bruce, WN Catford, IJ Cullen, Z Dombradi, ME Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, R Kruecken, S Lalkovski, Z Liu, A Maj, S Myalski, S Schwertel, T Shizuma, PM Walker, O Wieland (2008)Single-particle behavior at N=126: Isomeric decays in neutron-rich Pt-204, In: PHYSICAL REVIEW C78(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
C Longour, JG Narro, B Blank, M Lewitowicz, C Miehe, PH Regan, D Applebe, L Axelsson, AM Bruce, WN Catford, C Chandler, RM Clark, DM Cullen, S Czajkowski, JM Daugas, P Dessagne, A Fleury, L Frankland, W Gelletly, J Giovinazzo, B Greenhalgh, R Grzywacz, M Harder, KL Jones, N Kelsall, T Kszczot, RD Page, CJ Pearson, AT Reed, O Sorlin, R Wadsworth (1999)Half-lives of the odd-odd N=Z nuclei Y-78, Nb-82, Tc-86, In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS25(4)pp. 759-762
S Lalkovski, AM Bruce, AMD Bacelar, M Gorska, S Pietri, Z Podolyak, P Bednarczyk, L Caceres, E Casarejos, IJ Cullen, P Doornenbal, GF Farrelly, AB Garnsworthy, H Geissel, W Gelletly, J Gerl, J Grebosz, C Hinke, G Ilie, D Ivanova, G Jaworski, S Kisyov, I Kojouharov, N Kurz, N Minkov, S Myalski, M Palacz, P Petkov, W Prokopowicz, PH Regan, H Schaffner, S Steer, S Tashenov, PM Walker, HJ Wollersheim (2013)Submicrosecond isomer in Rh-117(45)72 and the role of triaxiality in its electromagnetic decay rate, In: PHYSICAL REVIEW C88(2)ARTN 0pp. ?-? AMER PHYSICAL SOC
S Pietri, PH Regan, Z Podolyak, D Rudolph, S Steer, AB Garnsworthy, E Werner-Malento, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, I Kojouharov, H Schaffner, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Grebosz, A Kelic, N Kurz, F Montes, W Prokopowicz, T Saito, S Tashenov, A Heinz, M Pfuetzner, T Kurtukian-Nieto, G Benzoni, M Hellstrom, A Jungclaus, J Simpson, L-L Andersson, L Atanasova, D Balabanski, MA Bentley, B Blank, A Blazhev, C Brandau, JR Brown, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, C Fahlander, W Gelletly, G Ilie, EK Johansson, J Jolie, GA Jones, M Kmiecik, FG Kondev, S Lalkovski, Z Liu, A Maj, S Myalski, T Shizuma, AJ Simons, S Schwertel, PM Walker, O Wieland (2007)Recent results in fragmentation isomer spectroscopy with rising, In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS261(1-2)pp. 1079-1083
S Mohammadi, Z Podolyák, G De Angelis, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kröll, S Longdown, S Lunardi, N Marginean, T Martinez, NH Medina, B Quintana, PH Regan, B Rubio, CA Ur, JJ Valiente Dobón, PM Walker, YH Zhang (2004)High-spin states populated in deep-inelastic reactions, In: Brazilian Journal of Physics34(3 A)pp. 792-795

High spin states in the neutron rich 188Os and 190Os nuclei have been populated using the 82Se + 192Os deep-inelastic reaction. The level schemes are extended up to spin I ≈21. The observed new structures are tentatively interpreted as fragments of rotational bands built on multi-quasiparticle configurations.

MA Bentley, SJ Williams, DT Joss, CD O'Leary, AM Bruce, JA Cameron, MP Carpenter, P Fallon, L Frankland, W Gelletly, CJ Lister, G Martinez-Pinedo, A Poves, PH Regan, P Reiter, B Rubio, J Sanchez-Solano, D Seweryniak, CE Svensson, SM Vincent, DD Warner (2002)Mirror symmetry and Coulomb effects in light N approximate to Z nuclei, In: CZECHOSLOVAK JOURNAL OF PHYSICS52pp. C597-C606
D Rudolph, S Pietri, Z Podolyak, PH Regan, AB Garnsworthy, R Hoischen, SJ Steer, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Gerl, M Gorska, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, E Werner-Malento, HJ Wollersheim, L-L Andersson, L Atanasova, DL Balabanski, MA Bentley, G Benzoni, B Blank, A Blazhev, C Brandau, JR Brown, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, C Fahlander, W Gelletly, A Heinz, M Hellstrom, G Ilie, EK Johansson, J Jolie, GA Jones, A Jungclaus, M Kmiecik, FG Kondev, T Kurtukian-Nieto, S Lalkovski, Z Liu, A Maj, S Myalski, M Pfutzner, T Shizuma, AJ Simons, S Schwertel, PM Walker, O Wieland (2007)Exciting isomers from the first stopped-beam RISING campaign, In: EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS150pp. 173-176
AI Morales, J Benlliure, T Kurtukian-Nieto, K-H Schmidt, S Verma, PH Regan, Z Podolyak, M Gorska, S Pietri, R Kumar, E Casarejos, N Al-Dahan, A Algora, N Alkhomashi, H Alvarez-Pol, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, LS Caceres, IJ Cullen, AMD Bacelar, P Doornenbal, ME Estevez-Aguado, G Farrelly, Y Fujita, AB Garnsworthy, W Gelletly, J Gerl, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Lalkovski, Z Liu, C Mihai, F Molina, D Muecher, B Rubio, H Shaffner, SJ Steer, A Tamii, S Tashenov, JJ Valiente-Dobon, PM Walker, HJ Wollersheim, PJ Woods (2014)Half-Life Systematics across the N=126 Shell Closure: Role of First-Forbidden Transitions in the beta Decay of Heavy Neutron-Rich Nuclei, In: PHYSICAL REVIEW LETTERS113(2)ARTN 0pp. ?-? AMER PHYSICAL SOC
S Rice, A Algora, JL Tain, E Valencia, J Agramunt, B Rubio, William Gelletly, Patrick Regan, A-A Zakari-Issoufou, M Fallot, A Porta, J Rissanen, T Eronen, J Äystö, L Batist, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V-V Elomaa, E Estevez, GF Farrelly, AR Garcia, B Gomez-Hornillos, V Gorlychev, J Hakala, MD Jordan, A Jokinen, VS Kolhinen, FG Kondev, T Martínez, P Mason, E Mendoza, I Moore, H Penttilä, Zsolt Podolyak, M Reponen, V Sonnenschein, AA Sonzogni, P Sarriguren (2017)Total absorption spectroscopy study of the β decay of 86Br and 91Rb, In: Physical Review C96(1)014320 American Physical Society

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

S Pietri, PH Regan, Z Podolyak, D Rudolph, M Gorska, A Jungclaus, M Pfuetzner, AB Garnsworthy, SJ Steer, L Caceres, E Werner-Malento, R Hoischen, J Gerl, I Kojouharov, H Schaffner, HJ Wollersheim, F Becker, P Bednarczyk, P Doornenbal, H Geissel, J Grebosz, A Kelic, N Kurz, F Montes, W Prokopowicz, T Saito, S Tashenov, A Heinz, T Kurtukian-Nieto, G Benzoni, M Hellstrom, L-L Andersson, L Atanasova, DL Balabanski, MA Bentley, B Blank, A Blazhev, C Brandau, JR Brown, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, C Fahlander, W Gelletly, G Ilie, EK Johansson, J Jolie, GA Jones, M Kmiecik, FG Kondev, S Lalkovski, Z Liu, A Maj, S Myalski, T Shizuma, AJ Simons, S Schwertel, PM Walker, O Wieland (2007)First results from the stopped beam isomer rising campaign at GSI, In: ACTA PHYSICA POLONICA B38(4)pp. 1255-1264
Z Janas, C Chandler, B Blank, PH Regan, AM Bruce, WN Catford, N Curtis, S Czajkowski, P Dessagne, A Fleury, W Gelletly, J Giovinazzo, R Grzywacz, M Lewitowicz, C Longour, C Marchand, C Miehé, NA Orr, RD Page, CJ Pearson, MS Pravikoff, AT Reed, MG Saint-Laurent, JA Sheikh, SM Vincent, R Wadsworth, DD Warner, JS Winfield (1999)Observation of the Z = N + 1 Nuclei 7739Y, 7949Zr, and 8342Mo, In: Physical Review Letters82(2)pp. 295-298

The very neutron deficient Z = N + 1 nuelei 7739Y, 7940Zr, and 8342Mo have been observed for the first time following the fragmentation of a 92Mo beam. In contrast, no evidence was found for the existence of 8141Nb and 8543Tc. The observation of 7739Y is of particular interest in light of the instability of the odd-proton, Z = N + 1 systems, 6935Br, 7337Rb, 8141Nb, and 8543Tc, and may be explained as a consequence of the shape polarizing effect of the highly deformed, prolate Z = N = 38 core. The experimental results are discussed within the framework of the shell-correction model, which together with proton-decay calculations allow an estimate of the proton separation energies of these highly exotic systems to be calculated.

PH Regan, AB Gamsworthy, SJ Steer, S Pletri, Z Podolyak, D Rudolph, M Gorska, L Caceres, E Wemer-Malento, J Gerl, HJ Wollersheim, F Becker, P Bednarczyk, PD Doornenbal, H Geissel, H Grawe, J Grebosz, R Hoischen, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, M Pfuetzner, T Kurtukian-Nieto, G Benzoni, M Hellstroem, A Jungclaus, L-L Andersson, L Atanasova, DL Balabanski, MA Bentley, B Blank, A Blazhev, C Brandau, J Brown, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, C Fahlander, W Gelletly, G Ilie, EK Johansson, J Jolie, GA Jones, M Kmiecik, G Kondev, S Lalkovski, Z Liu, A Maj, S Myalski, S Schwertel, T Shizuma, AJ Simons, PM Walker, O Wieland (2007)First results from the stopped RISING campaign at GSI: The mapping of isomeric decays in highly exotic nuclei, In: Six International Conference of the Balkan Physical Union899pp. 19-22
PJR Mason, Z Podolyak, NM Arginean, PH Regan, T Alexander, A Algora, T Alharbi, M Bowry, R Britton, D Bucurescu, AM Bruce, M Bunce, G Cata-Danil, I Cata-Danil, N Cooper, D Deleanu, D Delion, D Filipescu, W Gelletly, T Glodariu, I Gheorghe, D Ghita, G Ilie, D Ivanova, S Kisyov, S Lalkovski, R Lica, SN Liddick, R Marginean, C Mihai, K Mulholland, A Negret, CR Nita, S Rice, OJ Roberts, T Sava, JF Smith, P-A Soederstroem, PD Stevenson, L Stroe, S Toma, C Townsley, V Werner, E Wilson, RT Wood, NV Zamfir, M Zhekova, T Niksic, M Milin, D Vretenar, S Szilner (2012)Li-7-Induced Reactions for Fast-Timing With LaBr3:Ce Detectors, In: NUCLEAR STRUCTURE AND DYNAMICS '121491pp. 93-96
CD O'Leary, MA Bentley, SM Lenzi, G Martinez-Pinedo, DD Warner, AM Bruce, JA Cameron, MP Carpenter, CN Davids, P Fallon, L Frankland, W Gelletly, RVF Janssens, DT Joss, CJ Lister, PH Regan, P Reiter, B Rubio, D Seweryniak, CE Svensson, SM Vincent, SJ Williams (2002)Isovector pairing in odd-odd N=Z Mn-50, In: PHYSICS LETTERS B525(1-2)pp. 49-55 ELSEVIER SCIENCE BV
F Wang, BH Sun, Z Liu, RD Page, C Qi, C Scholey, SF Ashley, L Bianco, IJ Cullen, IG Darby, S Eeckhaudt, AB Garnsworthy, William Gelletly, MB Gomez-Hornillos, T Grahn, PT Greenlees, DG Jenkins, GA Jones, P Jones, DT Joss, R Julin, S Juutinen, S Ketelhut, S Khan, A Kishada, M Leino, M Niikura, M Nyman, J Pakarinen, S Pietri, Zsolt Podolyak, P Rahkila, S Rigby, J Saren, T Shizuma, J Sorri, S Steer, NJ Thompson, J Uusitalo, Philip Walker, S Williams, HF Zhang, WQ Zhang, L Zhu (2017)Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu, In: Physics Letters B770pp. 83-87 Elsevier

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.

N Al-Dahan, Z Podolyak, PH Regan, M Gorska, H Grawe, KH Maier, J Gerl, SB Pietri, HJ Wollersheim, N Alkhomashi, AY Deo, AMD Bacelar, G Farrelly, SJ Steer, AM Bruce, P Boutachkov, C Domingo-Pardo, A Algora, J Benlliure, A Bracco, E Calore, E Casarejos, IJ Cullen, P Detistov, Z Dombradi, M Doncel, F Farinon, W Gelletly, H Geissel, N Goel, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Lalkovski, S Leoni, F Molina, D Montanari, AI Morales, A Musumarra, DR Napoli, R Nicolini, C Nociforo, A Prochazka, W Prokopowicz, B Rubio, D Rudolph, H Schaffner, P Strmen, I Szarka, T Swan, JS Thomas, JJ Valiente-Dobon, S Verma, PM Walker, H Weick (2009)Nuclear structure "southeast" of Pb-208: Isomeric states in Hg-208 and Tl-209, In: PHYSICAL REVIEW C80(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
N Cieplicka, B Fornal, KH Maier, B Szpak, R Broda, W Krolas, T Pawlat, J Wrzesinski, RVF Janssens, MP Carpenter, CJ Chiara, CR Hoffman, FG Kondev, T Lauritsen, S Zhu, Z Podolyak, M Bowry, M Bunce, W Gelletly, R Kempley, M Reed, P Regan, P Walker, E Wilson, AY Deo, G Dracoulis, G Lane, C Rodriguez-Triguero (2014)ANGULAR DISTRIBUTIONS OF gamma RAYS FROM Bi-210 PRODUCED IN Pb-208+Pb-208 DEEP-INELASTIC REACTIONS, In: ACTA PHYSICA POLONICA B45(2)pp. 205-210
JJ Valiente-Dobón, PH Regan, C Wheldon, CY Wu, N Yoshinaga, K Higashiyama, JF Smith, D Cline, RS Chakrawarthy, R Chapman, M Cromaz, P Fallon, SJ Freeman, A Görgen, W Gelletly, A Hayes, H Hua, SD Langdown, IY Lee, X Liang, AO Macchiavelli, CJ Pearson, Z Podolyák, G Sletten, R Teng, D Ward, DD Warner, AD Yamamoto (2004)136Ba studied via deep-inelastic collisions: Identification of the (νh11/2)10+-2 isomer, In: Physical Review C - Nuclear Physics69(2)pp. 243161-2431613

A multinucleon transfer reaction between a thin self-supporting 78198Pt target and an 850 MeV 54136X6 beam has been used to populate and study the structure of the N=80 isotone 56136Ba. Making use of time-correlated γ-ray spectroscopy, evidence for an Iπ=(10+) isomeric state has been found with a measured half-life of 91±2 ns. Prompt-delayed correlations have also enabled the tentative measurement of the near-yrast states which lie above the isomer. Shell-model calculations suggest that the isomer has a structure which can be assigned predominantly as (vh 11/2)10+-2. The results are discussed in terms of standard and pair-truncated shell-model calculations, and compared to the even-Z N=80 isotones ranging from 50130Sn to 68148Er. A qualitative explanation of the observed dramatic decrease in the B(E2:10+→8+) value for the N=80 isotones at 136Ba is given in terms of the increasing single-hole energy of the h11/2 neutron configuration as the proton subshell is filled. The angular momentum transfer to the binary fragments in the reaction has also been investigated in terms of the average total γ-ray fold versus the scattering angle of the recoils.

WN Catford, S Mohammadi, PH Regan, CS Purry, W Gelletly, PM Walker, GJ Gyapong, J Simpson, DD Warner, T Davinson, R Neal, RD Page, AC Shotter, IM Hibbert, R Wadsworth, SA Forbes, AM Bruce, C Thwaites, P Thirolf, P VanDuppen, W Galster, A Ninane, J Vervier, P Decrock, M Huyse, J Szerypo, J Wauters (1997)High resolution gamma-ray spectroscopy with a radioactive beam, In: NUCLEAR PHYSICS A616(1-2)pp. C303-C310
AB Garnsworthy, PH Regan, S Pietri, D Rudolph, L Caceres, M Gorska, Z Podolyak, SJ Steer, A Heinz, F Becker, P Bednarczyk, P Doornenbal, H Geissel, J Gerl, H Grawe, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopwicz, T Saito, H Schaffner, S Tachenov, E Werner-Malento, HJ Wollersheim, G Benzoni, B Blank, C Brandau, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, R Hoischen, G Ilie, J Jolie, GA Jones, A Jungclaus, M Kmiecik, FG Kondev, T Kurtukian-Nieto, S Lalkovski, Z Liu, A Maj, S Myalski, M Pfutzner, T Shizuma, AJ Simons, S Schwertel, PM Walker, O Wieland (2007)Isomeric states in the light Tc isotopes, In: ACTA PHYSICA POLONICA B38(4)pp. 1265-1269
A. M. Bruce, A. P. Byrne, G. D. Dracoulis, W. Gelletly, T. Kibedi, F. G. Kondev, C. S. Purry, P. H. Regan, C. Thwaites, P. M. Walker (1997)Systematics of Kπ = 8- isomers in N = 74 nuclei, In: Physical Review C55(620)pp. 620-624
T Alexander, Z Podolyak, ML Cortes, J Gerl, D Rudolph, LG Sarmiento, F Ameil, T Arici, D Bazzacco, C Bauer, MA Bentley, A Blazhev, M Bowry, P Boutachkov, R Carroll, C Fahlander, A Gadea, J Gellanki, W Gelletly, A Givechev, N Goel, P Golubev, M Gorska, A Gottardo, E Gregor, G Guastalla, T Habermann, M Hackstein, A Jungclaus, I Kojouharov, W Korten, S Kumar, N Kurz, N Lalovic, M Lettmann, C Lizarazo, C Louchart, S Mandal, E Merchan, C Michelagnoli, T Moeller, K Moschner, Z Patel, N Pietralla, S Pietri, D Ralet, M Reese, PH Regan, P Reiter, H Schaffner, P Singh, C Stahl, R Stegmann, O Stezowksi, J Taprogge, P Thoele, PM Walker, O Wieland, A Wendt, E Wilson, R Wood, H-J Wollersheim (2015)ISOMERIC RATIOS IN Hg-206, In: ACTA PHYSICA POLONICA B46(3)pp. 601-605 WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO

206Hg was populated in the fragmentation of an E∕A = 1 GeV 208Pb beam at GSI. It was part of a campaign to study nuclei around 208Pb via relativistic Coulomb excitation. The observation of the known isomeric states confirmed the identification of the fragmentation products. The isomeric decays were also used to prove that the correlations between beam identification detectors and the AGATA γ-ray tracking array worked properly and that the tracking efficiency was independent of the time relative to the prompt flash.

AB Garnsworthy, PH Regan, L Caceres, S Pietri, Y Sun, D Rudolph, M Gorska, Z Podolyak, SJ Steer, R Hoischen, A Heinz, F Becker, P Bednarczyk, P Doornenbal, H Geissel, J Gerl, H Grawe, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tachenov, E Werner-Malento, HJ Wollersheim, G Benzoni, BB Blank, C Brandau, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, A Jungclaus, M Kmiecik, FG Kondev, T Kurtukian-Nieto, S Lalkovski, Z Liu, A Maj, S Myalski, M Pfutzner, S Schwertel, T Shizuma, AJ Simons, PM Walker, O Wielandi, FR Xu (2008)Neutron-proton pairing competition in N = Z nuclei: Metastable state decays in the proton dripline nuclei Nb-82(41) and Tc-86(43), In: PHYSICS LETTERS B660(4)pp. 326-330 ELSEVIER SCIENCE BV
Z Podolyak, S Mohammadi, G De Angelis, YH Zhang, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kroll, SD Langdown, S Lunardi, N Marginean, T Martinez, NH Medina, B Quintana, PH Regan, B Rubio, CA Ur, JJ Valiente-Dobon, PM Walker (2004)Structure of neutron-rich nuclei from deep-inelastic reactions, In: INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS13(1)pp. 123-126
GA Jones, Z Podolyak, PM Walker, PH Regan, G de Angelis, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kroll, SD Langdown, S Lunardi, N Marginean, T Martinez, NH Medina, B Quintana, B Rubio, CA Ur, JJ Valiente-Dobon, SJ Williams, YH Zhang (2005)Population of yrast states in Os-191 using deep-inelastic reactions, In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS31(10)pp. S1891-S1894
J J Valiente-Dobon, R H Regan, C Wheldon, C Y Wu, N Yoshinaga, K Higashiyama, J F Smith, D Cline, R S Chakrawarthy, R Chapman, M Cromaz, P Fallon, S J Freeman, A Gorgen, W Gelletly, A Hayes, H Hua, S D Langdown, I Y Lee, X Liang, A O Macchiavelli, C J Pearson, Z Podolyak, G Sletten, R Teng, D Ward, D D Warner, A D Yamamoto (2004)Ba-136 Studied Via Deep-Inelastic Collisions: Identification of the (vh(11/2))(10+)(-2) Isomer, In: Physical Review C69(2)

A multinucleon transfer reaction between a thin self-supporting Pt-198(78) target and an 850 MeV Xe-136(54) beam has been used to populate and study the structure of the N=80 isotone Ba-136(56). Making use of time-correlated gamma-ray spectroscopy, evidence for an I-pi=(10(+)) isomeric state has been found with a measured half-life of 91+/-2 ns. Prompt-delayed correlations have also enabled the tentative, measurement of the near-yrast states which lie above the isomer. Shell-model calculations suggest that the isomer has a structure which can be assigned predominantly as (nuh(11/2))(10+)(-2). The results are discussed in terms of standard and pair-truncated shell-model calculations, and compared to the even-Z N=80 isotones ranging from Sn-130(50) to Er-148(68). A qualitative explanation of the observed dramatic decrease in the B(E2:10(+)-->8(+)) value for the N=80 isotones at Ba-136 is given in terms of the increasing single-hole energy of the h(11/2) neutron configuration as the proton subshell is filled. The angular momentum transfer to the binary fragments in the reaction has also been investigated in terms of the average total gamma-ray fold versus the scattering angle of the recoils.

Z Podolyak, SJ Steer, S Pietri, M Gorska, PH Regan, D Rudolph, AB Garnsworthy, R Hoischen, J Gerl, HJ Wollersheim, H Grawe, KH Maier, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, T Kurtukian-Nieto, G Benzoni, M Pfuetzner, A Jungclaus, DL Balabanski, C Brandau, BA Brown, AM Bruce, WN Catford, IJ Cullen, Z Dombradi, ME Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, R Kruecken, S Lalkovski, Z Liu, A Maj, S Myalski, S Schwertel, T Shizuma, PM Walker, E Werner-Malento, O Wieland (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(+)), In: EUROPEAN PHYSICAL JOURNAL A42(3)pp. 489-493
T. A. Berry, Zs. Podolyak, R. J. Carroll, R. Lică, B. A. Brown, H. Grawe, Ch. Sotty, N. K. Timofeyuk, T. Alexander, A. N. Andreyev, S. Ansari, M. J. G. Borge, M. Brunet, J. R. Cresswell, C. Fahlander, L. M. Fraile, H. O. U. Fynbo, E. Gamba, W. Gelletly, R.-B. Gerst, M. Górska, A. Gredley, P. Greenlees, L. J. Harkness-Brennan, M. Huyse, S. M. Judge, D. S. Judson, J. Konki, M. Kowalska, J. Kurcewicz, I. Kuti, S. Lalkovski, I. Lazarus, M. Lund, M. Madurga, N. Mărginean, R. Mărginean, I. Marroquin, C. Mihai, R. E. Mihai, E. Nácher, A. Negret, S. Nae, C. Niţă, S. Pascu, R. D. Page, Z. Patel, A. Perea, J. Phrompao, M. Piersa, V. Pucknell, P. Rahkila, E. Rapisarda, P. H. Regan, F. Rotaru, M. Rudigier, C. M. Shand, R. Shearman, E. C. Simpson, S. Stegemann, T. Stora, O. Tengblad, A. Turturica, P. Van Duppen, V. Vedia, P. M. Walker, N. Warr, F. P. Wearing, H. De Witte (2020)Octupole states in 207Tl studied through β decay, In: Physical Review C101(5)054311 American Physical Society

The β decay of 207Hg into the single-proton-hole nucleus 207Tl has been studied through γ-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the πs−11/2, πd−13/2, and πh−111/2 shell model orbitals to the collective octupole vibration. Twenty-two states were observed lying between 2.6 and 4.0 MeV, eleven of which were observed for the first time, and 78 new transitions were placed. Two octupole states (s1/2-coupled) are identified and three more states (d3/2-coupled) are tentatively assigned using spin-parity inferences, while further h11/2-coupled states may also have been observed for the first time. Comparisons are made with state-of-the-art large-scale shell model calculations and previous observations made in this region, and systematic underestimation of the energy of the octupole vibrational states is noted. We suggest that in order to resolve the difference in predicted energies for collective and noncollective t=1 states (t is the number of nucleons breaking the 208Pb core), the effect of t=2 mixing may be reduced for octupole-coupled states. The inclusion of mixing with t=0,2,3 excitations is necessary to replicate all t=1 state energies accurately.

PH Regan, JJ Valiente-Dobon, C Wheldon, CY Wu, JF Smith, AO Macchiavelli, D Cline, RS Chakrawarthy, R Chapman, M Cromaz, P Fallon, SJ Freeman, A Gorgen, W Gelletly, A Hayes, SD Langdown, IY Lee, X Liang, CJ Pearson, Z Podolyak, R Teng, D Ward, DD Warner, AD Yamamoto (2004)Production of exotic nuclear isomers in multi-nucleon transfer reactions, In: LASER PHYSICS LETTERS1(6)pp. 317-324 IOP PUBLISHING LTD
M Caamano, PM Walker, PH Regan, M Pfutzner, Z Podolyak, J Gerl, M Hellstrom, P Mayet, MN Mineva, A Aprahamian, J Benlliure, AM Bruce, PA Butler, DC Gil, DM Cullen, J Doring, T Enqvist, C Fox, JG Narro, H Geissel, W Gelletly, J Giovinazzo, M Gorska, H Grawe, R Grzywacz, A Kleinbohl, W Korten, M Lewitowicz, R Lucas, H Mach, CD O'Leary, F De Oliveira, CJ Pearson, F Rejmund, M Rejmund, M Sawicka, H Schaffner, C Schlegel, K Schmidt, KH Schmidt, PD Stevenson, C Theisen, F Vives, DD Warner, C Wheldon, HJ Wollersheim, S Wooding, F Xu, O Yordanov (2005)Isomers in neutron-rich A approximate to 190 nuclides from Pb-208 fragmentation, In: EUROPEAN PHYSICAL JOURNAL A23(2)pp. 201-215 SPRINGER
S Myalski, A Maj, Z Podolyak, F Becker, P Bednarczyk, G Benzoni, B Blank, C Brandau, AM Bruce, L Caceres, F Camera, WN Catford, IJ Cullen, Z Dombradi, P Doornenbal, E Estevez, AB Garnsworthy, H Geissel, W Gelletly, J Gerl, M Corska, H Grawe, J Grebosz, A Heinz, R Hoischen, G Ilie, GA Jones, A Jungclaus, A Kelic, M Kmiecik, I Kojouharov, FG Kondev, T Kurtukian-Nieto, N Kurz, S Lalkovski, Z Liu, F Montes, M Pfuetzner, S Pietri, W Prokopowicz, PH Regan, D Rudolph, T Saito, H Schaffner, S Schwertel, T Shizuma, AJ Simon, SJ Steer, S Tashenov, PM Walker, E Werner-Malento, O Wieland, HJ Wollersheim (2009)ISOMERIC RATIOS FOR NUCLEI WITH Z=62-67 AND A=142-152 PRODUCED IN THE RELATIVISTIC FRAGMENTATION OF Pb-208, In: ACTA PHYSICA POLONICA B40(3)pp. 879-883
M Gorska, H Grawe, L Caceres, A Algora, M Boehmer, P Boutachkov, K Eppinger, T Faestermann, Y Fujita, A Gadea, A Garnsworthy, W Gelletly, J Gerl, R Gernhaeuser, C Hinke, A Jungclaus, I Kojouharov, R Kruecken, L Maier, P Molina, M Pfuetzner, S Pietri, Z Podolyak, PH Regan, B Rubio, D Rudolph, HJ Wollersheim (2009)NUCLEAR STRUCTURE ADDRESSED AT GSI/RISING, In: INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS18(4)pp. 759-766
J Agramunt, JL Tain, MB Gomez-Hornillos, AR Garcia, E Albiol, A Algora, R Caballero-Folch, E Calvino, D Cano-Ott, G Cortes, C Domingo-Pardo, T Eronen, W Gelletly, D Gorelov, V Gorlychev, H Hakala, A Jokinen, MD Jordan, A Kankainen, V Kolhinen, L Kucuk, T Martinez, PJR Mason, I Moore, H Penttila, Z Podolyak, C Pretel, M Reponen, A Riego, J Rissanen, B Rubio, A Saastamoinen, A Tarifeno-Saldivia, E Valencia (2016)Characterization of a neutron-beta counting system with beta-delayed neutron emitters, In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT807pp. 69-78 ELSEVIER SCIENCE BV
T Alharbi, PH Regan, PJR Mason, N Marginean, Z Podolyak, AM Bruce, EC Simpson, A Algora, N Alazemi, R Britton, MR Bunce, D Bucurescu, N Cooper, D Deleanu, D Filipescu, W Gelletly, D Ghita, T Glodariu, G Ilie, S Kisyov, J Lintott, S Lalkovski, S Liddick, C Mihai, K Mulholland, R Marginean, A Negret, M Nakhostin, CR Nita, OJ Roberts, S Rice, JF Smith, L Stroe, T Sava, C Townsley, E Wilson, V Werner, M Zhekova, NV Zamfir (2013)Electromagnetic transition rates in the N=80 nucleus Ce-138(58), In: PHYSICAL REVIEW C87(1)ARTN 01432 AMER PHYSICAL SOC
AI Morales, J Benlliure, PH Regan, Z Podolyak, M Gorska, N Alkhomashi, S Pietri, R Kumar, E Casarejos, J Agramunt, A Algora, H Alvarez-Pol, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, LS Caceres, IJ Cullen, AMD Bacelar, P Doornenbal, D Dragosavac, ME Estevez, G Farrelly, Y Fujita, AB Garnsworthy, W Gelletly, J Gerl, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Lalkovski, Z Liu, D Perez-Loureiro, W Prokopowicz, C Mihai, F Molina, D Muecher, B Rubio, H Schapffner, SJ Steer, A Tamii, S Tashenov, JJV Dobon, S Verma, PM Walker, HJ Wollersheim, PJ Woods (2009)beta-DELAYED gamma-RAY SPECTROSCOPY OF HEAVY NEUTRON RICH NUCLEI "SOUTH" OF LEAD, In: ACTA PHYSICA POLONICA B40(3)pp. 867-870
AMD Bacelar, AM Bruce, Z Podolyak, S Lalkovski, S Pietri, N Al-Dahan, M Gorska, A Algora, N Alkhomashi, J Benlliure, P Boutachkov, A Bracco, E Calore, E Casarejos, IJ Cullen, AY Deo, P Detistov, Z Dombradi, C Domingo-Pardo, M Doncel, F Farinon, GF Farrelly, H Geissel, W Gelletly, J Gerl, N Goel, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Leoni, F Molina, AI Morales, D Montanari, A Musumarra, R Nicolini, DR Napoli, C Nociforo, A Prochazka, W Prokopowicz, PH Regan, B Rubio, D Rudolph, S Verma, SJ Steer, P Strmen, TPD Swan, I Szarka, JJ Valiente-Dobon, PM Walker, H Weick, HJ Wollersheim (2009)ANGULAR MOMENTUM POPULATION IN FRAGMENTATION REACTIONS, In: ACTA PHYSICA POLONICA B40(3)pp. 889-892
WN Catford, S Mohammadi, PH Regan, CS Purry, W Gelletly, PM Walker, GJ Gyapong, J Simpson, DD Warner, T Davinson, R Neal, RD Page, AC Shotter, IM Hibbert, R Wadsworth, SA Forbes, AM Bruce, C Thwaites, P Thirolf, P VanDuppen, W Galster, A Ninane, J Vervier, P Decrock, M Huyse, J Szerypo, J Wauters (1996)High resolution gamma-ray spectroscopy with a radioactive beam, In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT371(3)pp. 449-459 ELSEVIER SCIENCE BV
Z Podolyak, PH Regan, M Pfutzner, J Gerl, M Hellstrom, M Caamano, P Mayet, C Schlegel, A Aprahamian, J Benlliure, AM Bruce, PA Butler, DC Gil, DM Cullen, J Doring, T Enqvist, F Rejmund, C Fox, JG Narro, H Geissel, W Gelletly, J Giovinazzo, M Gorska, H Grawe, R Grzywacz, A Kleinbohl, W Korten, M Lewitowicz, R Lucas, H Mach, M Mineva, CD O'Leary, F De Oliveira, CJ Pearson, M Rejmund, M Sawicka, H Schaffner, K Schmidt, C Theisen, PM Walker, DD Warner, C Wheldon, HJ Wollersheim, SC Wooding, FR Xu (2000)Isomer spectroscopy of neutron rich W-190(116), In: PHYSICS LETTERS B491(3-4)pp. 225-231 ELSEVIER SCIENCE BV
S Mohammadi, G De Angelis, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kroll, S Longdown, S Lunardi, N Marginean, T Martinez, N Medina, Z Podolyak, B Quintana, PH Regan, B Rubio, CA Ur, J-JV Dobon, PM Walker, YH Zhang (2006)Yrast states in Os-188,Os-190 nuclei, In: INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS15(8)pp. 1797-1802
N Alkhomashi, PH Regan, Z Podoyak, SB Pietri, AB Garnsworthy, SJ Steer, J Benlliure, E Caserejos, M Gorska, J Gerl, HJ Wollersheim, J Grebosz, N Kurz, I Kojouharov, H Schaffner, A Alcora, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, L Caceres, P Doornenbal, AMD Bacelar, IJ Cullen, ME Estevez, G Farrelly, Y Fujita, W Gelletly, R Hoischen, R Kumar, S Lalkovski, Z Liu, C Mihai, F Molina, D Muecher, B Rubio, A Tamii, S Tashenov, JJ Valiente-Dobon, PM Walker, PJ Woods (2009)beta(-)-DELAYED AND ISOMER SPECTROSCOPY OF NEUTRON-RICH Ta AND W ISOTOPES, In: ACTA PHYSICA POLONICA B40(3)pp. 875-878
C Chandler, PH Regan, CJ Pearson, B Blank, AM Bruce, WN Catford, N Curtis, S Czajkowski, W Gelletly, R Grzywacz, Z Janas, M Lewitowicz, C Marchand, NA Orr, RD Page, A Petrovici, AT Reed, MG Saint-Laurent, SM Vincent, R Wadsworth, DD Warner, JS Winfield (1997)Evidence for a highly deformed oblate 0(+) state in Kr-74(36), In: PHYSICAL REVIEW C56(6)pp. R2924-R2928 AMERICAN PHYSICAL SOC
R Caballero-Folch, C Domingo-Pardo, J Agramunt, A Algora, F Ameil, Y Ayyad, J Benlliure, M Bowry, F Calvino, D Cano-Ott, G Cortes, T Davinson, I Dillmann, A Estrade, A Evdokimov, T Faestermann, F Farinon, D Galaviz, AR Garcia, H Geissel, William Gelletly, R Gernhauser, MB Gomez-Hornillos, C Guerrero, M Heil, C Hinke, R Knobel, I Kojouharov, J Kurcewicz, N Kurz, Yu A Litvinov, L Maier, J Marganiec, M Marta, T Martinez, F Montes, I Mukha, DR Napoli, C Nociforo, C Paradela, S Pietri, Zsolt Podolyak, A Prochazka, S Rice, A Riego, B Rubio, H Schaffner, Ch Scheidenberger, K Smith, E Sokol, K Steiger, B Sun, JL Tain, M Takechi, D Testov, H Weick, E Wilson, JS Winfield, Rachael Wood, PJ Woods, A Yeremin (2017)Beta-decay half-lives and Beta-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb and Bi, beyond N=126, In: PHYSICAL REVIEW C95(6)064322 AMER PHYSICAL SOC

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

SJ Steer, Z Podolyak, S Pietri, PH Regan, D Rudolph, E Werner-Malento, AB Garnsworthy, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Grebosz, A Kelic, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tachenov, A Heinz, M Pfuetzner, T Kurtukian-Nieto, G Benzoni, A Jungclaus, DL Balabanski, C Brandau, AM Bruce, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, S Lalkovski, Z Liu, A Maj, S Myalski, T Shizuma, S Schwertel, PM Walker, O Wieland (2007)Identification of isomeric states 'south' of Pb-208 via projectile fragmentation, In: ACTA PHYSICA POLONICA B38(4)pp. 1283-1286
C Longour, JG Narro, B Blank, M Lewitowicz, C Miehe, PH Regan, D Applebe, L Axelsson, AM Bruce, WN Catford, C Chandler, RM Clark, DM Cullen, S Czajkowski, JM Daugas, P Dessagne, A Fleury, L Frankland, W Gelletly, J Giovinazzo, B Greenhalgh, R Grzywacz, M Harder, KL Jones, N Kelsall, T Kszczot, RD Page, CJ Pearson, AT Reed, O Sorlin, R Wadsworth (1998)Observation of Fermi superallowed beta(+) decays in heavy odd-odd, N = Z nuclei: Evidence for 0(+) ground states in Y-78, Nb-82, and Tc-86, In: PHYSICAL REVIEW LETTERS81(16)pp. 3337-3340 AMERICAN PHYSICAL SOC
JL Tain, A Algora, J Agramunt, V Guadilla, MD Jordan, A Montaner-Piza, B Rubio, E Valencia, D Cano-Ott, W Gelletly, T Martinez, E Mendoza, Z Podolyak, P Regan, J Simpson, AJ Smith, J Strachan (2015)A decay total absorption spectrometer for DESPEC at FAIR, In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT803pp. 36-46 ELSEVIER SCIENCE BV
PH Regan, AB Garnsworthy, S Pietri, L Caceres, M Gorska, D Rudolph, Z Podolyak, SJ Steer, R Hoischen, J Gerl, HJ Wollersheim, J Grebosz, H Schaffner, W Prokopwicz, I Kojouharov, F Becker, P Bednarczyk, P Doornenball, H Geissel, H Grawe, A Kelic, N Kurz, F Montes, T Saito, S Tashenov, E Werner-Malento, A Heinz, L Atanasova, D Balabanski, G Benzoni, B Blank, A Blazhev, C Brandau, AM Bruce, F Camera, IJ Cullen, ME Estevez, C Fahlander, W Gelletly, G Ilie, A Jungclaus, J Jolie, T Kurtukian-Nieto, Z Liu, M Kmiecik, A Maj, S Myalski, S Schwertel, T Shizuma, AJ Simons, PM Walker, O Wieland (2007)Isomer spectroscopy using relativistic projectile fragmentation at the N=Z line for A similar to 80 -> 90., In: NUCLEAR PHYSICS A787pp. 491C-498C ELSEVIER SCIENCE BV

The preliminary results from the RISING Stopped Beam Isomer Campaign are presented, with specific focus on results of the initial experiment to investigate isomeric decays along the N=Z line around A similar to 80-90 following the projectile fragmentation of a Ag-107 primary beam at an energy of 750 MeV per nucleon. A description of the technical aspects behind the design of the RISING array is presented, together with evidence for previously unreported isomeric decays in Tc-87,Tc-88 and the N=Z nuclei Nb-82(41) and Tc-86(43).

JL Tain, E Valencia, A Algora, J Agramunt, B Rubio, S Rice, W Gelletly, P Regan, A-A Zakari-Issoufou, M Fallot, A Porta, J Rissanen, T Eronen, J Aysto, L Batist, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V-V Elomaa, E Estevez, GF Farrelly, AR Garcia, B Gomez-Hornillos, V Gorlychev, J Hakala, MD Jordan, A Jokinen, VS Kolhinen, FG Kondev, T Martinez, E Mendoza, I Moore, H Penttila, Z Podolyak, M Reponen, V Sonnenschein, AA Sonzogni (2015)Enhanced gamma-Ray Emission from Neutron Unbound States Populated in beta Decay, In: PHYSICAL REVIEW LETTERS115(6)ARTN 06250 AMER PHYSICAL SOC
R Caballero-Folch, C Domingo-Pardo, G Cortes, JL Tain, J Agramunt, A Algora, F Ameil, Y Ayyad, J Benlliure, M Bowry, F Calvino, D Cano-Ott, T Davinson, I Dillmann, A Estrade, A Evdokimov, T Faestermann, F Farinon, D Galaviz, A Garcia-Rios, H Geissel, W Gelletly, R Gernhauser, MB Gomez-Hornillos, C Guerrero, M Heil, C Hinke, R Knobel, I Kojouharov, J Kurcewicz, N Kurz, Y Litvinov, L Maier, J Marganiec, M Marta, T Martinez, F Montes, I Mukha, DR Napoli, C Nociforo, C Paradela, S Pietri, Z Podolyak, A Prochazka, S Rice, A Riego, B Rubio, H Schaffner, C Scheidenberger, K Smith, E Sokol, K Steiger, B Sun, M Takechi, D Testov, H Weick, E Wilson, JS Winfield, R Wood, PJ Woods, A Yeremin (2014)beta-decay and beta-delayed Neutron Emission Measurements at GSI-FRS Beyond N=126, for r-process Nucleosynthesis, In: NUCLEAR DATA SHEETS120pp. 81-83 ACADEMIC PRESS INC ELSEVIER SCIENCE
SM Vincent, PH Regan, DD Warner, W Gelletly, J Simpson, R Bark, D Blumenthal, MP Carpenter, CN Davids, DJ Henderson, RVF Janssens, CJ Lister, D Nisius, CD O'Leary, CJ Pearson, T Saitoh, J Schwartz, D Seweryniak, S Tormanen (1998)Probing the structure of the N=Z=31 nucleus Ga-62(31), In: ENAM 98: EXOTIC NUCLEI AND ATOMIC MASSES455pp. 450-455
Z Janas, C Chandler, B Blank, PH Regan, AM Bruce, WN Catford, N Curtis, S Czajkowski, P Dessagne, A Fleury, W Gelletly, J Giovinazzo, R Grzywacz, M Lewitowicz, C Longour, C Marchand, C Miehe, NA Orr, RD Page, CJ Pearson, MS Pravikoff, AT Reed, MG Saint-Laurent, JA Sheikh, SM Vincent, R Wadsworth, DD Warner, JS Winfield (1999)Observation of the Z=N+1 nuclei Y-77(39), Zr-79(40), and Mo-83(42), In: PHYSICAL REVIEW LETTERS82(2)pp. 295-298 AMERICAN PHYSICAL SOC
B Fernández-Domínguez, RC Lemmon, C Timis, M Labiche, WN Catford, M Chartier, N Ashwood, N Amzal, TD Baldwin, M Burns, L Caballero, R Chapman, N Curtis, G De France, M Freer, W Gelletly, X Liang, NA Orr, SD Pain, VPE Pucknell, M Rejmund, B Rubio, H Savajols, O Sorlin, K Spohr, C Thiesen, DD Warner (2006)Studies of the single particle structure of exotic nuclei using transfer reactions, In: AIP Conference Proceedings831pp. 347-351

The TIARA+VAMOS+EXOGAM set-up has recently been installed at GANIL to study the single-particle structure of exotic nuclei. The unique characteristics of the TIARA array, combined with the large acceptance spectrometer VAMOS and the high efficiency Germanium detector array EXOGAM, has allowed high-resolution measurements of transfer reactions in inverse kinematics using low intensity exotic beams. We will describe the experimental set-up, data analysis and preliminary results of the first experiments using a 24Ne beam from SPIRAL, concentrating in particular on the performance of VAMOS that has been used to detect the heavy fragments after the (d,p), (d,d) and (d,t) reactions. © 2006 American Institute of Physics.

J Agramunt, AR Garcia, A Algora, J Aysto, R Caballero-Folch, F Calvino, D Cano-Ott, G Cortes, C Domingo-Pardo, T Eronen, W Gelletly, MB Gomez-Hornillos, J Hakala, A Jokinen, D Jordan, A Kankainen, V Kolkinen, T Martinez, PJ Mason, I Moore, H Penttila, Z Podolyak, M Reponen, A Riego, J Rissanen, B Rubio, A Saastamoinen, JL Tain, E Valencia (2014)New Beta-delayed Neutron Measurements in the Light-mass Fission Group, In: NUCLEAR DATA SHEETS120pp. 74-77 ACADEMIC PRESS INC ELSEVIER SCIENCE
A Algora, E Valencia, JL Tain, MD Jordan, J Agramunt, B Rubio, E Estevez, F Molina, A Montaner, V Guadilla, M Fallot, A Porta, A-A Zakari-Issoufou, VM Bui, S Rice, Z Podolyak, PH Regan, W Gelletly, M Bowry, P Mason, GF Farrelly, J Rissanen, T Eronen, I Moore, H Penttila, J Aysto, V Eloma, J Hakala, A Jokinen, V Kolkinen, M Reponen, V Sonnenschein, D Cano-Ott, T Martinez, E Mendoza, AR Garcia, MB Gomez-Hornillos, V Gorlychev, R Caballero-Folch, FG Kondev, AA Sonzogni (2014)Total Absorption Study of Beta Decays Relevant for Nuclear Applications and Nuclear Structure, In: NUCLEAR DATA SHEETS120pp. 12-15 ACADEMIC PRESS INC ELSEVIER SCIENCE
R Caballero-Folch1, C Domingo-Pardo, J Agramunt, A Algora, F Ameil, A Arcones, Y Ayyad, J Benlliure, IN Borzov, M Bowry, F Calvino, D Cano-Ott, G Cortes, T Davinson, I Dillmann, A Estrade, A Evdokimov, T Faestermann, F Farinon, D Galaviz, AR Garcıa, H Geissel, William Gelletly, R Gernhauser, MB Gomez-Hornillos, C Guerrero, M Heil, C Hinke, R Knobel, I Kojouharov, J Kurcewicz, N Kurz, YA Litvinov, L Maier, J Marganiec, T Marketin, M Marta, T Martınez, G Martınez-Pinedo, F Montes, I Mukha, DR Napoli, C Nociforo, C Paradela, S Pietri, Zsolt Podolyak, A Prochazka, S Rice, A Riego, B Rubio, H Schaffner, C Scheidenberger, K Smith, E Sokol, K Steiger, B Sun, JL Taın, M Takechi, D Testov, H Weick, E Wilson, JS Winfield, Rachael Wood, P Woods, A Yeremin (2017)First measurement of several β-delayed neutron emitting isotopes beyond N=126, In: Physical Review Letters.117(1)012501 American Physical Society

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.

RC Lemmon, B Fernandez-Dominguez, C Timis, M Labiche, WN Catford, M Chartier, N Ashwood, N Amzal, TD Baldwin, M Burns, L Caballero, R Chapman, N Curtis, G De France, M Freer, W Gelletly, X Liang, NA Orr, SD Pain, VPE Pucknell, M Rejmund, B Rubio, H Savajols, O Sorlin, K Spohr, C Thiesen, DD Warner (2006)Studies of single-particle structure in the N=16 region using transfer reactions, In: AIP Conference Proceedings853pp. 285-290

We have developed a new experimental setup based at the GANIL/SPIRAL facility in Caen, France to measure one-nucleon transfer reactions in inverse kinematics in order to study the evolution of the single particle structure of exotic nuclei. The setup couples together three state-of-the-art detection systems: the TIARA Si array, the large-acceptance magnetic spectrometer VAMOS and the high-efficiency segmented Ge γ-ray array EXOGAM. In a first experiment, the 24Ne(d,p)25Ne reaction has been studied to probe the N=16 shell closure. Details of the setup, data analysis and preliminary results are presented. © 2006 American Institute of Physics.

A Gadea, S M Lenzi, S Lunardi, N Marginean, A P Zuker, G de Angelis, M Axiotis, T Martinez, D R Napoli, E Farnea, R Menegazzo, P Pavan, C A Ur, D Bazzacco, R Venturelli, P Kleinheinz, P Bednarczyk, D Curien, O Dorvaux, J Nyberg, H Grawe, M Gorska, M Palacz, K Lagergren, L Milechina, J Ekman, D Rudolph, C Andreoiu, M A Bentley, W Gelletly, B Rubio, A Algora, E Nacher, L Caballero, M Trotta, M Moszynski (2006)Observation of Ni-54 : Cross-Conjugate Symmetry in f(7/2) Mirror Energy Differences, In: Physical Review Letters97(15)

Gamma decays from excited states up to J(pi)=6() in the N=Z-2 nucleus Ni-54 have been identified for the first time. Level energies are compared with those of the isobars Co-54 and Fe-54 and of the cross-conjugate nuclei of mass A=42. The good but puzzling f(7/2) cross-conjugate symmetry in mirror and triplet energy differences is analyzed. Shell model calculations reproduce the new data but the necessary nuclear charge-dependent phenomenology is not fully explained by modern nucleon-nucleon potentials.

B Fernández-Domínguez, RC Lemmon, C Timis, M Labiche, WN Catford, M Chartier, NI Ashwood, N Amzal, TD Baldwin, M Burns, L Caballero, R Chapman, N Curtis, G de France, M Freer, W Gelletly, X Liang, NA Orr, SD Pain, VPE Pucknell, M Rejmund, B Rubio, H Savajols, O Sorlin, K Spohr, C Thiesen, DD Warner (2007)Single particle structure of exotic nuclei with transfer reactions, In: Progress in Particle and Nuclear Physics59(1)pp. 389-391

We report here on the first results obtained from the study of the 24Ne(d, p)25Ne reaction performed with SPIRAL beam at GANIL using the new TIARA+V AMOS+EXOGAM setup. © 2007.

D Bucurescu, C Rusu, N Marginean, C A Ur, G de Angelis, L Corradi, D Bazzacco, S Beghini, F Della Vedova, G Duchene, E Farnea, T Faul, E Fioretto, A Gadea, W Gelletly, B Guiot, M Ionescu-Bujor, A Lordachescu, S D Landown, S M Lenzi, S Lunardi, P Mason, C Mihai, R Marginean, R Menegazzo, G Montagnoli, D Napoli, Z Podolyak, P H Regan, F Scarlassara, A M Stefanini, G Suliman, S Szilner, M Trotta, J J Valiente-Dobon, Y H Zhang (2007)Gamma-ray Spectroscopy of the Neutron-Rich Nuclei Rb-89, Y-92, and Y-93 with Multinucleon Transfer Reactions, In: Physical Review C76(6)

The positive-parity yrast states in the Rb-89, Y-92, and Y-93 nuclei were studied using gamma-ray spectroscopy with heavy-ion induced reactions. In the multinucleon transfer reactions Pb-208+Zr-90 (590 MeV) and U-238+Se-82 (505 MeV), several gamma-ray transitions were identified in these nuclei by means of coincidences between recoiling ions identified with the PRISMA spectrometer and gamma rays detected with the CLARA gamma-ray array in thin target experiments. Level schemes were subsequently determined from triple-gamma coincidences recorded with the GASP array in a thick target experiment, in the reactions produced by a 470 MeV Se-82 beam with a Os-192 target. The observed level schemes are compared to shell-model calculations.

PH Regan, GA Jones, Z Podolyak, N Yoshinaga, K Higashiyama, G de Angelis, YH Zhang, A Gadea, CA Ur, M Axiotis, D Bazzacco, R Broda, D Bucurescu, E Farnea, W Gelletly, M Ionescu-Bujor, A Iordachescu, T Kroll, SD Langdown, S Lenzi, S Lunardi, N Marginean, T Martinez, N Medina, R Menegazzo, DR Napoli, B Quintana, B Rubio, C Rusu, R Schwenger, D Tonev, JJ Valiente Dobon, W von Oertzen (2006)Multinucleon transfer reactions to study single-particle evolution in Se isotopes, In: Capture Gamma-Ray Spectroscopy and Related Topics819pp. 464-471
E Rapisarda, R Shearman, M Rudigier, M Huyse, M Piersa, T Alexander, P Van Duppen, D S Judson, R Marginean, T Stora, R Lică, P M Walker, R E Mihai, S Stegemann, M Madurga, A Gredley, R D Page, L J Harkness-Brennan, F Rotaru, R Wadsworth, M Brunet, P Rahkila, V Vedia, H O U Fynbo, M Lund, L M Fraile, J R Creswell, T Berry, S Lalkovski, S Ansari, F Wearing, N Warr, S M Judge, V Pucknell, E R Gamba, C Nita, C M Shand, P H Regan, Ch Sotty, A Perea, R J Carroll, Z Patel, A N Andreyev, N Marginean, I H Lazarus, I Marroquin, O Tengblad, M Górska, Zs Podolyák, C Mihai, H Grawe, R B Gerst, M J G Borge, C Fahlander, A Negret, P T Greenlees, J Phrompao, H De Witte, I Kuti, J Kurcewicz, E Nácher, J Konki, S Pascu, W Gelletly, ZSOLT PODOLYAK (2020)Competition between Allowed and First-Forbidden β Decay: The Case of 208Hg → 208Tl, In: Physical review letters125192501 American Physical Society

The β decay of 208Hg into the one-proton hole, one neutron-particle 20881Tl127 nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z

AB Garnsworthy, PH Regan, L Caceres, Y Pietri, Y Sun, D Rudolph, M Gorska, Z Podolyak, SJ Steer, R Hoischen, A Heinz, F Becker, R Bednarczyk, P Doornenbal, H Geissel, J Gerl, H Grawe, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tachenov, E Werner-Malento, HJ Wollersheim, G Benzoni, BB Blank, C Brandau, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dornbradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, A Jungclaus, M Kmiecik, FG Kondev, T Kurtukian-Nieto, S Lalkovski, Z Liu, A Maj, S Myalski, M Pfutzner, S Schwertel, T Shizuma, AJ Simons, PM Walker, O Wieland, FR Xu (2008)Neutron-proton pairing competition in N = Z nuclei: Metastable state decays in the proton dripline nuclei (82)(41)Nb and (86)(43)TC (vol 660, pg 326, 2008), In: PHYSICS LETTERS B668(5)pp. 460-460 ELSEVIER SCIENCE BV
E Farnea, G de Angelis, A Gadea, PG Bizzeti, A Dewald, J Eberth, A Algora, M Axiotis, D Bazzacco, AM Bizzeti-Sona, F Brandolini, G Colo, W Gelletly, MA Kaci, N Kintz, T Klug, T Kroll, SM Lenzi, S Lunardi, N Marginean, T Martinez, R Menegazzo, DR Napoli, J Nyberg, P Pavan, Z Podolyak, CM Petrache, B Quintana, B Rubio, P Spolaore, T Steinhardt, JL Tain, O Thelen, CA Ur, R Venturelli, M Wesizflog (2003)Isospin mixing in the N = Z nucleus Ge-64, In: PHYSICS LETTERS B551(1-2)PII S0370-pp. 56-62 ELSEVIER SCIENCE BV
PH Regan, N Alkhomashi, N Al-Dahan, Z PodolyÁk, SB Pietri, SJ Steer, AB Garnsworthy, EB Suckling, PD Stevenson, G Farrelly, IJ Cullen, W Gelletly, PM Walker, J Benlliure, AI Morales, E Casajeros, ME Estevez, J Gerl, M GÓrska, HJ Wollersheim, P Boutachkov, S Tashenov, I Kojouharov, H Schaffner, N Kurz, R Kumar, B Rubio, A Algora, F Molina, J Grebosz, G Benzoni, D MÜcher, AM Bruce, AMD Bacelar, S Lalkovski, Y Fujita, A Tamii, R Hoischen, Z Liu, PJ Woods, C Mihai, JJ Valiente-DobÓn (2008)First results with the rising active stopper, In: International Journal of Modern Physics E17(SUPPL.)pp. 8-20
C Wheldon, JJ Valiente-Dobon, PH Regan, CJ Pearson, CY Wu, JF Smith, AO Macchiavelli, D Cline, RS Chakrawarthy, R Chapman, M Cromaz, P Fallon, SJ Freeman, W Gelletly, AG Goergen, AB Hayes, H Hua, SD Langdown, IY Lee, X Liang, Z Podolyak, G Sletten, R Teng, D Ward, DD Warner, AD Yamamoto (2006)Observation of an isomeric state in Au-197, In: PHYSICAL REVIEW C74(2)ARTN 0pp. ?-? AMERICAN PHYSICAL SOC
G A Jones, P H Regan, Z Podolyak, N Yoshinaga, K Higashiyama, G de Angelis, Y H Zhang, A Gadea, C A Ur, M Axiotis, D Bazzacco, D Bucurescu, E Farnea, W Gelletly, M Ionescu-Bujor, A Lordachescu, T Kroll, S D Langdown, S Lenzi, S Lunardi, N Marginean, T Martinez, N H Medina, R Menegazzo, D R Napoli, B Quintana, B Rubio, C Rusu, R Schwenger, D Tonev, J J Doban, W van Oertzen (2007)Yrast Studies of Se-80,Se-82 Using Deep-Inelastic Reactions, In: Physical Review C76(5)

We report the results of an experiment in which we studied the near-yrast states in selenium isotopes approaching N=50 following their population in multinucleon transfer reactions between a Se-82 beam and a Os-192 target. The level schemes for Se-80,Se-82 derived from the current work are compared with restricted-basis shell-model calculations and pair-truncated shell-model calculations. These provide a good description of the yrast sequences in these nuclei using a basis space limited to excitations in the nu(p3/2, p1/2, p1/2) and pi(f5/2, p3/2, p1/2) orbitals.

N Al-Dahan, Z Podolyák, PH Regan, SJ Steer, AMD Bacelar, N Alkhomashi, M Górska, J Gerl, HJ Wollersheim, SB Pietri, H Grawe, AY Deo, G Farrelly, P Boutachkov, C Domingo-Pardo, A Algora, J Benlliure, A Bracco, AM Bruce, E Calore, E Casarejos, IJ Cullen, P Detistov, Z Dombrádi, M Doncel, F Farinon, H Geissel, W Gelletly, N Goel, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Lalkovski, S Leoni, F Molina, D Montanari, AI Morales, A Musumarra, DR Napoli, R Nicolini, C Nociforo, A Prochazka, W Prokopowicz, B Rubio, D Rudolph, H Schaffner, P Strmen, I Szarka, T Swan, JJ Valiente-Dobon, S Verma, PM Walker, H Weick (2009)Isomeric states in 208Hg and 209Tl populated in fragmentation of 238U, In: Acta Physica Polonica B40(3)pp. 871-874 Jagellonian University

The nuclear structure of neutron-rich N > 126 nuclei has been investigated following their production via relativistic projectile fragmentation of a E/A = 1 GeV (238)U beam on a Be target. The preliminary analysis indicates the presence of previously unreported isomeric states in the N = 128 isotones (208)Hg and (209)Tl.

S Lalkovski, AM Bruce, A Jungclaus, M Gorska, M Pfuetzner, L Caceres, F Naqvi, S Pietri, Z Podolyak, GS Simpson, K Andgren, P Bednarczyk, T Beck, J Benlliure, G Benzoni, E Casarejos, B Cederwall, FCL Crespi, JJ Cuenca-Garcia, IJ Cullen, AMD Bacelar, P Detistov, P Doornenbal, GF Farrelly, AB Garnsworthy, H Geissel, W Gelletly, J Gerl, J Grebosz, B Hadinia, M Hellstrom, C Hinke, R Hoischen, G Ilie, G Jaworski, J Jolie, A Khaplanov, S Kisyov, M Kmiecik, I Kojouharov, R Kumar, N Kurz, A Maj, S Mandal, V Modamio, F Montes, S Myalski, M Palacz, W Prokopowicz, P Reiter, PH Regan, D Rudolph, H Schaffner, D Sohler, SJ Steer, S Tashenov, J Walker, PM Walker, H Weick, E Werner-Malento, O Wieland, HJ Wollersheim, M Zhekova (2013)Core-coupled states and split proton-neutron quasiparticle multiplets in Ag122-126, In: PHYSICAL REVIEW C87(3)ARTN 0pp. ?-? AMER PHYSICAL SOC
E Poirier, F Marechal, P Dessagne, A Algora, M J Borge, D Cano-Ott, J C Caspar, S Courtin, J Devin, L M Fraile, W Gelletly, G Heitz, A Jungclaus, G Le Scornet, C Miehe, E Nacher, B Rubio, P Sarriguren, J L Tain, O Tengblad, C Weber (2004)B(GT) Strength from Beta-Decay Measurements and Inferred Shape Mixing in Kr-74, In: Physical Review C69(3)

A total absorption spectrometer, dedicated to the study of very short-lived atomic species, has been built and installed at the CERN/ISOLDE mass separator. The beta decay of the neutron-deficient Kr-74 nucleus has been studied using this new device. The Gamow-Teller strength distribution has been observed over most of the Q(EC) window, and a total strength of 0.69(3) g(A)(2)/4pi has been measured for states with excitation energy below 3 MeV. Shape mixing in the Kr-74 ground state is inferred from a comparison of the experimental strength distribution with self-consistent, deformed, quasiparticle-random-phase-approximation calculations.

YH Zhang, Z Podolyak, G de Angelis, A Gadea, C Ur, S Lunardi, N Marginean, C Rusu, R Schwengner, T Kroll, DR Napoli, R Menegazzo, D Bazzacco, E Farnea, S Lenzi, T Martinez, M Axiotis, D Tonev, W Gelletly, S Langdown, PH Regan, JJV Dobon, W von Oertzen, B Rubio, B Quintana, N Medina, R Broda, D Bucurescu, M Ionescu-Bujor, A Iordachescu (2004)Stability of the N=50 shell gap in the neutron-rich Rb, Br, Se, and Ge isotones, In: PHYSICAL REVIEW C70(2)ARTN 0pp. ?-? AMERICAN PHYSICAL SOC
P-A Soderstrom, J Nyberg, PH Regan, A Algora, G de Angelis, SF Ashley, S Aydin, D Bazzacco, RJ Casperson, WN Catford, J Cederkall, R Chapman, L Corradi, C Fahlander, E Farnea, E Fioretto, SJ Freeman, A Gadea, W Gelletly, A Gottardo, E Grodner, CY He, GA Jones, K Keyes, M Labiche, X Liang, Z Liu, S Lunardi, N Marginean, P Mason, R Menegazzo, D Mengoni, G Montagnoli, D Napoli, J Ollier, S Pietri, Z Podolyak, G Pollarolo, F Recchia, E Sahin, F Scarlassara, R Silvestri, JF Smith, K-M Spohr, SJ Steer, AM Stefanini, S Szilner, NJ Thompson, GM Tveten, CA Ur, JJ Valiente-Dobon, V Werner, SJ Williams, FR Xu, JY Zhu (2010)Spectroscopy of neutron-rich Dy-168,Dy-170: Yrast band evolution close to the NpNn valence maximum, In: PHYSICAL REVIEW C81(3)ARTN 0pp. ?-? AMER PHYSICAL SOC
A Gadea, DR Napoli, G de Angelis, R Menegazzo, AM Stefanini, L Corradi, M Axiotis, L Berti, E Fioretto, T Kroell, A Latina, N Marginean, G Maron, T Martinez, D Rosso, C Rusu, N Toniolo, S Szilner, M Trotta, D Bazzacco, S Beghini, M Bellato, F Brandolini, E Farnea, R Isocrate, SM Lenzi, S Lunardi, G Montagnoli, P Pavan, CR Alvarez, F Scarlassara, C Ur, N Blasi, A Bracco, F Camera, S Leoni, B Million, M Pignanelli, G Pollarolo, A DeRosa, C Inglima, M La Commara, G La Rana, D Pierroutsakou, M Romoli, M Sandoli, PG Bizzeti, AM Bizzeti-Sona, G Lo Bianco, CM Petrache, A Zucchiatti, P Cocconi, B Quintana, C Beck, D Curien, G Duchene, F Haas, P Medina, P Papka, J Durell, SJ Freeman, A Smith, B Varley, K Fayz, V Pucknell, J Simpson, W Gelletly, P Regan (2004)Coupling a CLOVER detector array with the PRISMA magnetic spectrometer - Investigation of moderately neutron-rich nuclei populated by multinucleon transfer and deep inelastic collisions, In: EUROPEAN PHYSICAL JOURNAL A20(1)pp. 193-197
S. F. Ashley, P. H. Regan, K. Andgren, E. A. McCutchan, N. V. Zamfir, L. Amon, R. B. Cakirli, R. F. Casten, R. M. Clark, W. Gelletly, G. Gürdal, K. L. Keyes, D. A. Meyer, M. N. Erduran, A. Papenberg, N. Pietralla, C. Plettner, G. Rainovski, R. V. Ribas, N. J. Thomas, J. Vinson, D. D. Warner, V. Werner, E. Williams, H. L. Liu, F. R. Xu (2007)Intrinsic state lifetimes in 103Pd and 106,107Cd, In: Physical Review C76(064302)
WN Catford, CN Timis, RC Lemmon, M Labiche, NA Orr, B Fernandez-Dominguez, R Chapman, M Freer, M Chartier, H Savajols, M Rejmund, NL Achouri, N Amzal, NI Ashwood, TD Baldwin, M Burns, L Caballero, JM Casadjian, N Curtis, G de France, W Gelletly, X Liang, SD Pain, VPE Pucknell, B Rubio, O Sorlin, K Spohr, C Theisen, DD Warner (2010)Migration of Nuclear Shell Gaps Studied in the d(Ne-24, p gamma)Ne-25 Reaction, In: PHYSICAL REVIEW LETTERS104(19)ARTN 1pp. ?-? AMER PHYSICAL SOC
AM Baxter, AP Byrne, GD Dracoulis, PM Davidson, TR McGoram, PH Regan, C Chandler, W Gelletly, C Wheldon, R Julin, JFC Cocks, K Helariutta, P Jones, S Juutinen, H Kankaanpaa, H Kettunen, P Kuusiniemi, M Leino, M Muikku, A Savelius, RVF Janssens, T Brown, MP Carpenter, CN Davids, T Lauritsen, D Nisius, PT Greenlees (1998)Identification of yrast states in Pb-187, In: PHYSICAL REVIEW C58(5)pp. 2671-2676 AMERICAN PHYSICAL SOC
PM Regan, C Chandler, CJ Pearson, B Blank, R Grzywacz, M Lewitowicz, AM Bruce, WN Catford, N Curtis, S Czajkowski, P Dessagne, A Fleury, W Gelletly, J Giovinazzo, Z Janas, C Longour, C Marchand, C Miehe, NA Orr, RD Page, MS Pravikoff, AT Reed, MG Saint-Laurent, SM Vincent, R Wadsworth, DD Warner, JS Winfield (1997)Studies of isomeric states and limits of particle stability around N∼Z∼40 using fragmentation reactions, In: Acta Physica Polonica B28(1-2)pp. 431-442

Fragmentation products from a 92Mo beam on a natural nickel target have been used to study structural properties of the very neutron deficient nuclei around N∼Z∼40. We present the first observation of isomeric decays in the Tz=1 systems 3674Kr, 3980 Y and 4184Nb. The isomer in 74Kr is interpreted as the hindered decay from an excited 0+ state, confirming the prediction of prolate/oblate shape coexistence in this nucleus. Transitions from states below an isomer in the N=Z nucleus 4386Tc have also been tentatively identified, making this the heaviest N=Z system for which decays from excited states have been observed. In addition, we have obtained the first conclusive evidence for the existence of the Tz = -1/2 isotopes 3977Y, 4079Zr and 4283Mo. The data for 3977Y is of particular interest in light of the reported instability in the lighter odd-Z, Tz = -1/2 systems 69Br and 73Rb.

M Labiche, WN Catford, RC Lemmon, CN Timis, R Chapman, NA Orr, B Fernandez-Dominguez, G Moores, NL Achouri, N Amzal, S Appleton, NI Ashwood, TD Baldwin, M Burns, L Caballero, J Cacitti, JM Casadjian, M Chartier, N Curtis, K Faiz, G de France, M Freer, JM Gautier, W Gelletly, G Iltis, B Lecornu, X Liang, C Marry, Y Merrer, L Olivier, SD Pain, VFE Pucknell, B Raine, M Rejmund, B Rubio, F Saillant, H Savajols, O Sorlin, K Spohr, C Theisen, G Voltolini, DD Warner (2010)TIARA: A large solid angle silicon array for direct reaction studies with radioactive beams, In: NUCL INSTRUM METH A614(3)pp. 439-448 ELSEVIER SCIENCE BV

A compact, quasi-4π position sensitive silicon array, TIARA, designed to study direct reactions induced by radioactive beams in inverse kinematics is described here. The Transfer and Inelastic All-angle Reaction Array (TIARA) consists of 8 resistive charge division detectors forming an octagonal barrel around the target and a set of double-sided silicon-strip annular detectors positioned at each end of the barrel. The detector was coupled to the γ-ray array EXOGAM and the spectrometer VAMOS at the GANIL Laboratory to demonstrate the potential of such an apparatus with radioactive beams. The reaction, well known in direct kinematics, has been carried out in inverse kinematics for that purpose. The observation of the ground state and excited states at 7.16 and 7.86 MeV is presented here as well as the comparison of the measured proton angular distributions with DWBA calculations. Transferred l-values are in very good agreement with both theoretical calculations and previous experimental results obtained in direct kinematics.

N Alkhomashi, PH Regan, Z Podolyak, S Pietri, AB Garnsworthy, SJ Steer, J Benlliure, E Caserejos, RF Casten, J Gerl, HJ Wollersheim, J Grebosz, G Farrelly, M Gorska, I Kojouharov, H Schaffner, A Algora, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, AMD Bacelar, IJ Cullen, L Caceres, P Doornenbal, ME Estevez, Y Fujita, W Gelletly, R Hoischen, R Kumar, N Kurz, S Lalkovski, Z Liu, C Mihai, F Molina, AI Morales, D Muecher, W Prokopowicz, B Rubio, Y Shi, A Tamii, S Tashenov, JJ Valiente-Dobon, PM Walker, PJ Woods, FR Xu (2009)beta(-)-delayed spectroscopy of neutron-rich tantalum nuclei: Shape evolution in neutron-rich tungsten isotopes, In: PHYSICAL REVIEW C80(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
N Al-Dahan, Z Podolyak, PH Regan, SJ Steer, N Alkhomashi, AMD Bacelar, M Gorska, SB Pietri, W Gelletly, PM Walker, G Farrelly, AI Morales, AY Deo, IJ Cullen, J Gerl, C Domingo-Pardo, S Verma, T Swan, HJ Wollersheim, AM Bruce, S Lalkovski, J Benlliure, A Algora, P Boutachkov, A Bracco, E Calore, E Casarejos, P Detistov, Z Dombradi, M Doncel, F Farinon, H Geissel, N Goel, J Grebosz, R Hoischen, I Kojouharov, S Leoni, F Molina, D Montanari, A Musumarra, R Nicolini, DR Napoli, C Nociforo, B Rubio, A Prochazka, D Rudolph, P Strmen, I Szarka, JJ Valiente-Dobon, H Weick, A Blazhev, J Jolie, N Warr, A Zilges (2009)Structure of N >= 126 nuclei produced in fragmentation of (238)U, In: CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS1090pp. 145-148
SM Vincent, PH Regan, DD Warner, RA Bark, D Blumenthal, MP Carpenter, CN Davids, W Gelletly, RVF Janssens, CD O'Leary, CJ Lister, J Simpson, D Seweryniak, T Saitoh, J Schwartz, S Tormanen, O Juillet, F Nowacki, P Van Isacker (1998)Competing T=0 and T=1 structures in the N=Z nucleus Ga-62(31), In: PHYSICS LETTERS B437(3-4)pp. 264-272 ELSEVIER SCIENCE BV
GA Jones, Z Podolyak, N Schunck, PM Walker, G De Angelis, YH Zhang, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kroll, SD Langdown, S Lunardi, N Marginean, T Martinez, NH Medina, B Quintana, PH Regan, B Rubio, CA Ur, JJ Valiente-Dobon, SJ Williams (2005)Oblate collectivity in the yrast structure of Pt-194, In: ACTA PHYSICA POLONICA B36(4)pp. 1323-1327
PH Regan, N Alkhomashi, N Al-Dahan, Z Podolyak, EB Suckling, PD Stevenson, SB Pietri, SJ Steer, AB Garnsworthy, W Gelletly, J Benlliure, AI Morales, J Gerl, M Gorska, HJ Wollersheim, R Kumar, J Grebosz, A Algora, G Benzoni, P Boutachkov, AM Bruce, E Casarejos, IJ Cullen, AMD Bacelar, A Blazhev, ME Estevez, G Farrelly, Y Fujita, R Hoischen, S Lalkovski, Z Liu, I Kojouharov, N Kurz, C Mihai, F Molina, D Muecher, B Rubio, H Schaffner, S Tashenov, A Tamii, JJV Dobon, PM Walker, PJ Woods, A Blazhev, J Jolie, N Warr, A Zilges (2009)New Insights into the Structure of Exotic Nuclei Using the RISING Active Stopper, In: CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS1090pp. 122-129
T.A. Berry, Zs. Podolyak, R.J. Carroll, R. Lică, H. Grawe, N.K. Timofeyuk, T. Alexander, A.N. Andreyev, S. Ansari, M.J.G. Borge, J. Creswell, C. Fahlander, L.M. Fraile, H.O.U. Fynbo, W. Gelletly, R.-B. Gerst, M. Górska, A. Gredley, P. Greenlees, L.J. Harkness-Brennan, M. Huyse, S.M. Judge, D.S. Judson, J. Konki, J. Kurcewicz, I. Kuti, S. Lalkovski, I. Lazarus, M. Lund, M. Madurga, N. Mărginean, R. Mărginean, I. Marroquin, C. Mihai, R.E. Mihai, E. Nácher, S. Nae, A. Negret, C. Niţă, R.D. Page, S. Pascu, Z. Patel, A. Perea, V. Pucknell, P. Rahkila, E. Rapisarda, P.H. Regan, F. Rotaru, C.M. Shand, E.C. Simpson, Ch. Sotty, S. Stegemann, T. Stora, O. Tengblad, A. Turturica, P. Van Duppen, V. Vedia, R. Wadsworth, P.M. Walker, N. Warr, F. Wearing, H. De Witte (2019)Investigation of the Δn = 0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg, In: Physics Letters B793pp. 271-275 Elsevier

Gamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn=0 requirement plays a major role in the β decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical r-process pathway below both Z=50 (for N ˃ 82) and Z = 82 (for N ˃ 126). The level of forbiddenness of the Δn=1v1g9/2 → π0g7/2 transition has been investigated from the β decay of the ground state of 207Hg into the single-proton-hole nucleus 207Tl in an experiment at the ISOLDE Decay Station. From statistical observational limits on possible γ-ray transitions depopulating the π0g-17/2 state in 207Tl, an upper limit of 3.9 x 10-3% was obtained for the probability of this decay, corresponding to log ft ˃ 8.8 within a 95% confidence limit. This is the most stringent test of the Δn=0 selection rule to date.

Z Podolyak, SJ Steer, S Pietri, E Werner-Malento, PH Regan, D Rudolph, AB Garnsworthy, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, T Kurtukian-Nieto, G Benzoni, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, M Pfutzner, M Hellstrom, A Jungclaus, LL Andersson, L Atanasova, DL Balabanski, A Bentley, B Blank, A Blazhev, C Brandau, J Brown, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, C Fahlander, W Gelletly, G Ilie, EK Johansson, J Jolie, GA Jones, M Kmiecik, FG Kondev, S Lalkovski, Z Liu, A Maj, S Myalski, T Shizuma, AJ Simons, S Schwertel, PM Walker, O Wieland, BA Brown (2007)Isomeric decay studies around Pt-204 and Tb-148, In: EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS150pp. 165-168 EDP SCIENCES S A

Relativistic energy projectile fragmentation of Pb-208 has been used to produce a range of exotic nuclei. The nuclei of interest were studied by detecting delayed gamma rays following the decay of isomeric states. Experimental information on the excited states of the neutron-rich N = 126 nucleus, Pt-204, following internal decay of two isomeric states, was obtained for the first time. In addition, decays from the previously reported isomeric I=27h and I=(49/2)h states in Tb-148 and Gd-147, respectively, have been observed. These isomeric decays represent the highest spin discrete states observed to date following a projectile fragmentation reaction, and opens further the possibility of doing 'high-spin physics' using this technique.

AM Denis Bacelar, AM Bruce, S Lalkovski, Z Podolyák, N Al-Dahan, N Alkhomashi, IJ Cullen, AY Deo, GF Farrelly, W Gelletly, PH Regan, SJ Steer, TPD Swan, PM Walker, M Górska, S Pietri, MV Ricciardi, P Boutachkov, C Domingo-Pardo, F Farinon, H Geissel, J Gerl, N Goel, J Grȩbosz, R Hoischen, I Kojouharov, N Kurz, C Nociforo, A Prochazka, W Prokopowicz, K-H Schmidt, H Schaffner, H Weick, HJ Wollersheim, P Detistov, A Algora, F Molina, B Rubio, Z Dombradi, J Benlliure, AI Morales, S Verma, A Bracco, S Leoni, D Montanari, R Nicolini, E Calore, DR Napoli, JJ Valiente-Dobón, E Casarejos, M Doncel, D Rudolph, A Musumarra, K Steiger, P Strmen, I Szarka (2013)The population of metastable states as a probe of relativistic-energy fragmentation reactions, In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics723(4-5)pp. 302-306 Elsevier

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 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 55/2ℏ 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.

JA Briz, MJG Borge, A Maira, A Perea, O Tengblad, J Agramunt, A Algora, E Estevez, E Nacher, B Rubio, LM Fraile, A Deo, G Farrelly, W Gelletly, Z Podolyak (2010)Conversion coefficients of the isomeric state in 72Br, In: AIP Conference Proceedings1231pp. 203-204

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.

S Myalski, M Kmiecik, A Maj, PH Regan, AB Garnsworthy, S Pietri, D Rudolph, Z Podolyak, SJ Steer, F Becker, P Bednarczyk, J Gerl, M Gorska, H Grawe, I Kojouharov, H Schaffner, HJ Wollersheim, W Prokopowicz, J Grebosz, G Benzoni, B Blank, C Brandau, AM Bruce, L Caceres, F Camera, WN Catford, IJ Cullen, Z Dombradi, P Doornenbal, E Estevez, H Geissel, W Gelletly, A Heinz, R Hoischen, G Ilie, GA Jones, A Jungclaus, A Kelic, FG Kondev, T Kurtukian-Nieto, N Kurz, S Lalkovski, Z Liu, F Montes, M Pfutzner, T Saito, T Shizuma, AJ Simons, S Schwertel, S Tachenov, PM Walker, E Werner-Malento, O Wieland (2007)Isomeric ratio for the I-pi=8(+) yrast state in Pd-96 produced in the relativistic fragmentation of Ag-107, In: ACTA PHYSICA POLONICA B38(4)pp. 1277-1282 ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS

We report on the preliminary results from a study of the decay of the I-pi = 8(+) T-1/2 = 2 mu s isomer in Pd-96 performed as part of the Stopped-Beam RISING campaign within the Rare Isotope Investigation at GSI (RISING). The Pd-96 ions were produced following the projectile fragmentation of a 750 MeV per nucleon Ag-107 primary beam. The reaction products were separated and identified by the in-flight method using the GSI Fragment Separator. The residues of interest were stopped in a perspex stopper surrounded by an array of 15, seven-element germanium Cluster detectors. One of the goals of the current work is to investigate the population of high-spin states produced projectile fragmentation reactions using isomeric ratio measurements to infer information on the angular momentum population distribution. In this short contribution the method and results of determining the isomeric ratio for the I-pi = 8(+) microsecond isomer in Pd-96 nucleus are presented.

AA Zakari-Issoufou, A Porta, M Fallot, A Algora, JL Tain, E Valencia, S Rice, J Agramunt, J Äystö, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V Eloma, E Estévez, GF Farrelly, A Garcia, W Gelletly, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, MD Jordan, A Kankainen, FG Kondev, T Martinez, E Mendoza, F Molina, I Moore, A Perez, Z Podolyak, H Penttilä, PH Regan, J Rissanen, B Rubio, C Weber (2014)Results of fission products β decay properties measurement performed with a total absorption spectrometer, In: EPJ Web of Conferences66

β-decay properties of fission products are very important for applied reactor physics, for instance to estimate the decay heat released immediately after the reactor shutdown and to estimate the ν flux emitted. An accurate estimation of the decay heat and the ν emitted flux from reactors, are necessary for purposes such as reactors operation safety and non-proliferation. In order to improve the precision in the prediction for these quantities, the bias due to the Pandemonium effect affecting some important fission product data has to be corrected. New measurements of fission products β-decay, not sensitive to this effect, have been performed with a Total Absorption Spectrometer (TAS) at the JYFL facility of Jyväskylä. An overview of the TAS technique and first results from the 2009 campaign will be presented. © Owned by the authors, published by EDP Sciences, 2014.

AI Morales, J Benlliure, J Agramunt, A Algora, N Alkhomashi, H Alvarez-Pol, P Boutachkov, AM Bruce, LS Caceres, E Casarejos, AMD Bacelar, P Doornenbal, D Dragosavac, G Farrelly, A Gadea, W Gelletly, J Gerl, M Gorska, J Grebosz, I Kojouharov, F Molina, D Perez-Loureiro, S Pietri, Z Podolyak, PH Regan, B Rubio, H Shaffner, SJ Steer, S Tashenov, S Verma, HJ Wollersheim (2011)Synthesis of N=127 isotones through (p,n) charge-exchange reactions induced by relativistic Pb-208 projectiles, In: PHYSICAL REVIEW C84(1)ARTN 0pp. ?-? AMER PHYSICAL SOC
S Pietri, PH Rega, Z Podolyak, A Jungclaus, M Pfutzner, D Rudolph, AB Garnsworthy, SJ Steer, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, I Kojouharov, H Schaffner, J Grebosz, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, A Kelic, N Kurz, F Montes, W Prokopowicz, T Saito, S Tashenov, E Werner-Malento, W Gelletly (2007)Experimental details of the Stopped Beam RISING campaign, In: EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS150pp. 319-320
GF Farrelly, Z Podolyak, SJ Steer, S Pietri, FR Xu, E Werner-Malento, T Shizuma, PH Regan, D Rudolph, AB Garnsworthy, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, T Kurtukian-Nieto, G Benzoni, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geisserl, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, M Pfuezner, A Jungclaus, DL Balabanski, C Brandau, AM Bruce, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, R Kruecken, S Lalkovski, HL Liu, Z Liu, A Maj, S Myalski, S Schwerrel, PM Walker, O Wieland (2009)REVISION OF THE K-ISOMER IN W-190(116), In: ACTA PHYSICA POLONICA B40(3)pp. 885-888
SM Lenzi, N Marginean, DR Napoli, CA Ur, AP Zuker, G de Angelis, A Algora, M Axiotis, D Bazzacco, N Belcari, MA Bentley, PG Bizzetti, A Bizzeti-Sona, F Brandolini, P von Brentano, D Bucurescu, JA Cameron, C Chandler, M De Poli, A Dewald, H Eberth, E Farnea, A Gadea, J Garces-Narro, W Gelletly, H Grawe, R Isocrate, DT Joss, CA Kalfas, T Klug, T Lampman, S Lunardi, T Martinez, G Martinez-Pinedo, R Menegazzo, J Nyberg, Z Podolyak, A Poves, RV Ribas, CR Alvarez, B Rubio, J Sanchez-Solano, P Spolaore, T Steinhardt, O Thelen, D Tonev, A Vitturi, W von Oertzen, M Weiszflog (2001)Coulomb energy differences in T=1 mirror rotational bands in Fe-50 and Cr-50, In: PHYSICAL REVIEW LETTERS87(12)ARTN 12250 AMERICAN PHYSICAL SOC
G. A. Jones, P. H. Regan, Zs. Podolyák, N. Yoshinaga, K. Higashiyama, G. de Angelis, Y. H. Zhang, A. Gadea, C. A. Ur, M. Axiotis, D. Bazzacco, D. Bucurescu, E. Farnea, W. Gelletly, M. Ionescu-Bujor, A. Iordachescu, Th. Kröll, S. D. Langdown, S. Lenzi, S. Lunardi, N. Marginean, T. Martinez, N. H. Medina, R. Menegazzo, D. R. Napoli, B. Quintana, B. Rubio, C. Rusu, R. Schwengner, D. Tonev, J. J. Valiente Dobón, W. von Oertzen (2007)Yrast studies of 80,82Se using deep-inelastic reactions, In: Physical Review C76(054317)
Y Fujita, B Rubio, T Adachi, F Molina, A Algora, GPA Berg, P von Brentano, J Buscher, T Cocolios, D De Frenne, C Fransen, H Fujita, K Fujita, W Gelletly, K Hatanaka, M Huyse, O Ivanov, Y Kudryavtsev, E Jacobs, D Jordan, K Nakanishi, A Negret, D Pauwels, AB Perez-Cerdan, N Pietralla, Z Podolyak, L Popescu, R Raabe, Y Sakemi, M Sawicka, Y Shimbara, Y Shimizu, T Shizuma, Y Tameshige, A Tamii, P Van den Bergh, J Van de Walle, P Van Duppen, M Yosoi, KO Zell (2008)Gamow-Teller transitions in exotic pf-shell nuclei relevant to supernova explosion, In: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS35(1)pp. ?-?
E Valencia, A Algora, JL Tain, S Rice, J Agramunt, AA Zakari-Issoufou, J Äystö, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V Eloma, T Eronen, E Estevez, GF Farrelly, M Fallot, A Garcia, W Gelletly, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, MD Jordan, A Kankainen, FG Kondev, T Martinez, E Mendoza, F Molina, I Moore, A Perez, Z Podolyak, H Penttilä, A Porta, PH Regan, J Rissanen, B Rubio, C Weber (2014)Gamma/neutron competition above the neutron separation energy in delayed neutron emitters, In: EPJ Web of Conferences66

To study the β-decay properties of some well known delayed neutron emitters an experiment was performed in 2009 at the IGISOL facility (University of Jyväskylä in Finland) using Total Absorption -ray Spectroscopy (TAGS) technique. The aim of these measurements is to obtain the full β-strength distribution below the neutron separation energy (Sn) and the γ/neutron competition above. This information is a key parameter in nuclear technology applications as well as in nuclear astrophysics and nuclear structure. Preliminary results of the analysis show a significant γ-branching ratio above Sn. © Owned by the authors, published by EDP Sciences, 2014.

AB Garnsworthy, PH Regan, S Pietri, Y Sun, FR Xu, D Rudolph, M Gorska, L Caceres, Z Podolyak, SJ Steer, R Hoischen, A Heinz, F Becker, P Bednarczyk, P Doornenbal, H Geissel, J Gerl, H Grawe, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopwicz, T Saito, H Schaffner, S Tachenov, E Werner-Malento, HJ Wollersheim, G Benzoni, B Blank, C Brandau, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, A Jungclaus, M Kmiecik, FG Kondev, T Kurtukian-Nieto, S Lalkovski, Z Liu, A Maj, S Myalski, M Pfuetzner, S Schwertel, T Shizuma, AJ Simons, PM Walker, O Wieland (2009)Isomeric states in neutron-deficient A similar to 80-90 nuclei populated in the fragmentation of Ag-107, In: PHYSICAL REVIEW C80(6)ARTN 0pp. ?-? AMER PHYSICAL SOC
S Lalkovski, S Kisyov, M Zhekova, AM Bruce, AMD Bacelar, M Górska, S Pietri, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Gerl, J Grȩbosz, I Kojouharov, N Kurz, W Prokopowicz, H Schaffner, S Tashenov, HJ Wollersheim, Z Podolyák, IJ Cullen, GF Farrelly, AB Garnsworthy, W Gelletly, PH Regan, S Steer, PM Walker, E Casarejos, S Myalski, C Hinke, G Ilie, G Jaworski, M Palacz (2012)Single-particle isomeric states in Pd and Ru, In: Journal of Physics: Conference Series366(1)

Neutron-rich nuclei were populated in a relativistic fission of U. Gamma-rays with energies of 135 keV and 184 keV were associated with two isomeric states in Pd and Ru. Half-lives of 0.63(5) μs and 2.0(3) μs were deduced and the isomeric states were interpreted in terms of prolate deformed single-particle states.

S Rice, E Valencia, A Algora, JL Tain, PH Regan, Z Podolyak, J Agramunt, W Gelletly, AL Nichols, S Freeman, A Andreyev, A Bruce, A Deacon, D Jenkins, D Joss, D MacGregor, P Regan, J Simpson, G Tungate, B Wadsworth, D Watts (2012)Decay Heat Measurements Using Total Absorption Gamma-ray Spectroscopy, In: RUTHERFORD CENTENNIAL CONFERENCE ON NUCLEAR PHYSICS381ARTN 0pp. ?-? IOP PUBLISHING LTD
Z Podolyak, SJ Steer, S Pietri, FR Xu, HL Liu, PH Regan, D Rudolph, AB Garnsworthy, R Hoischen, M Gorska, J Gerl, HJ Wollersheim, T Kurtukian-Nieto, G Benzoni, T Shizuma, F Becker, P Bednarczyk, L Caceres, P Doornenbal, H Geissel, J Grebosz, A Kelic, I Kojouharov, N Kurz, F Montes, W Prokopowicz, T Saito, H Schaffner, S Tashenov, A Heinz, M Pfutzner, A Jungclaus, DL Balabanski, C Brandau, AM Bruce, WN Catford, IJ Cullen, Z Dombradi, E Estevez, W Gelletly, G Ilie, J Jolie, GA Jones, M Kmiecik, FG Kondev, R Kruecken, S Lalkovski, Z Liu, A Maj, S Myalski, S Schwertel, PM Walker, E Werner-Malento, O Wieland (2009)Weakly deformed oblate structures in Os-198(76)122, In: PHYSICAL REVIEW C79(3)ARTN 0pp. ?-? AMER PHYSICAL SOC
S Rice, A Algora, JL Tain, E Valencia, J Agramunt, B Rubio, William Gelletly, Patrick Regan, A-A Zakari-Issoufou, M Fallot, A Porta, J Rissanen, T Eronen, J Aysto, L Batist, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V-V Elomaa, E Estevez, GF Farrelly, AR Garcia, B Gomez-Hornillos, V Gorlychev, J Hakala, MD Jordan, A Jokinen, VS Kolhinen, FG Kondev, T Martinez, E Mendoza, I Moore, H Penttila, Zsolt Podolyak, M Reponen, V Sonnenschein, AA Sonzogni, P Sarriguren (2017)Total Absorption Spectroscopy Study of the Beta Decay of 86Br and 91 1 Rb, In: Physical Review C96014320 American Physical Society

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.

AM Bruce, S Lalkovski, AMD Bacelar, M Gorska, S Pietri, Z Podolyak, Y Shi, PM Walker, FR Xu, P Bednarczyk, L Caceres, E Casarejos, IJ Cullen, P Doornenbal, GF Farrelly, AB Garnsworthy, H Geissel, W Gelletly, J Gerl, J Grebosz, C Hinke, G Ilie, G Jaworski, I Kojouharov, N Kurz, S Myalski, M Palacz, W Prokopowicz, PH Regan, H Schaffner, S Steer, S Tashenov, HJ Wollersheim (2010)Shape coexistence and isomeric states in neutron-rich Tc-112 and Tc-113, In: PHYSICAL REVIEW C82(4)ARTN 0pp. ?-? AMER PHYSICAL SOC
D. Bucurescu, C. Rusu, N. Mărginean, C. A. Ur, G. de Angelis, L. Corradi, D. Bazzacco, S. Beghini, F. Della Vedova, G. Duchene, E. Farnea, T. Faul, E. Fioretto, A. Gadea, W. Gelletly, B. Guiot, M. Ionescu-Bujor, A. Iordăchescu, S. D. Landown, S. M. Lenzi, S. Lunardi, P. Mason, C. Mihai, R. Mărginean, R. Menegazzo, G. Montagnoli, D. Napoli, Zs. Podolyák, P. H. Regan, F. Scarlassara, A. M. Stefanini, G. Suliman, S. Szilner, M. Trotta, J. J. Valiente-Dobón, Y. H. Zhang (2007)gamma--ray spectroscopy of the neutron-rich nuclei 89Rb, 92Y, and 93Y with multinucleon transfer reactions, In: Physical Review C76(064301)

The positive-parity yrast states in the 89Rb, 92Y, and 93Y nuclei were studied using gamma-ray spectroscopy with heavy-ion induced reactions. In the multinucleon transfer reactions 208Pb+90Zr (590 MeV) and 238U+82Se (505 MeV), several gamma-ray transitions were identified in these nuclei by means of coincidences between recoiling ions identified with the PRISMA spectrometer and gamma rays detected with the CLARA gamma-ray array in thin target experiments. Level schemes were subsequently determined from triple gamma coincidences recorded with the GASP array in a thick target experiment, in the reactions produced by a 470 MeV 82Se beam with a 192Os target. The observed level schemes are compared to shell-model calculations.

PH Regan, C Chandler, CJ Pearson, B Blank, R Grzywacz, M Lewitowicz, AM Bruce, WN Catford, N Curtis, S Czajkowski, P Dessagne, A Fleury, W Gelletly, J Giovinazzo, Z Janas, C Longour, C Marchand, C Miehe, NA Orr, RD Page, MS Pravikoff, AT Reed, MG SaintLaurent, SM Vincent, R Wadsworth, DD Warner, JS Winfield (1997)Studies of isomeric states and limits of particle stability around N greater than or similar to Z greater than or similar to 40 using fragmentation reactions, In: ACTA PHYSICA POLONICA B28(1-2)pp. 431-442
PJR Mason, Zsolt Podolyak, N Marginean, Patrick Regan, Paul Stevenson, V Werner, T Alexander, A Algora, T Alharbi, M Bowry, R Britton, AM Bruce, D Bucurescu, M Bunce, G Cata-Danil, I Cata-Danil, N Cooper, D Deleanu, D Delion, D Filipescu, William Gelletly, D Ghita, I Gheorghe, T Glodariu, G Ilie, D Ivanova, S Kisyov, S Lalkovski, R Lica, SN Liddick, R Marginean, C Mihai, K Mulholland, CR Nita, A Negret, S Pascu, S Rice, OJ Roberts, T Sava, JF Smith, P-A Soederstroem, L Stroe, G Suliman, R Suvaila, S Toma, C Townsley, E Wilson, Rachael Wood, M Zhekova, C Zhou (2013)Half-life of the yrast 2(+) state in W-188: Evolution of deformation and collectivity in neutron-rich tungsten isotopes, In: PHYSICAL REVIEW C88(4)044301pp. ?-? AMER PHYSICAL SOC

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.

LS Caceres, M Gorska, A Jungclaus, PH Regan, AB Garnsworthy, S Pietri, Z Podolyak, D Rudolph, SJ Steer, H Grawe, DL Balabanski, F Becker, P Bednarczyk, G Benzoni, B Blank, C Brandau, AM Bruce, F Camera, WN Catford, IJ Cullen, Z Dombradi, P Doornenbalal, E Estevez, H Geissel, W Gelletly, J Gerl, J Grebosz, A Heinz, R Hoischen, G Ilie, J Jolie, GA Jones, M Kmiecik, I Kojouharov, FG Kondev, T Kurtukian-Nieto, N Kurz, S Lalkowski, L Liu, A Maj, S Myalsk, F Montes, M Pfuetzner, W Prokopowicz, T Saito, H Schatfner, S Schwertel, T Shizuma, AJ Simons, S Tashenov, PM Walker, E Werner-Malento, O Wielandh, HJ Wollersheim (2007)Identification of excited states in the N = Z nucleus Nb-82, In: ACTA PHYSICA POLONICA B38(4)pp. 1271-1275
M Pfutzner, PH Regan, PM Walker, M Caamano, J Gerl, M Hellstrom, P Mayet, KH Schmidt, Z Podolyak, MN Mineva, A Aprahamian, J Benlliure, AM Bruce, PA Butler, DC Gil, DM Cullen, J Doring, T Enquist, C Fox, J Garces Narro, H Geissel, W Gelletly, J Giovinazzo, M Gorska, H Grawe, R Grzywacz, A Kleinbohl, W Korten, M Lewitowicz, R Lucas, H Mach, CD O'Leary, F De Oliveira, CJ Pearson, F Rejmund, M Rejmund, M Sawicka, H Schaffner, C Schlegel, K Schmidt, C Theisen, F Vives, DD Warner, C Wheldon, HJ Wollersheim, S Wooding (2002)Angular momentum population in the fragmentation of Pb-208 at 1 GeV/nucleon, In: PHYSICAL REVIEW C65(6)ARTN 0pp. ?-? AMERICAN PHYSICAL SOC
K Andgren, Z Podolyak, A Dewald, F R Xu, A Algora, M Axiotis, D Bazzacco, P G Bizzeti, A M Bizzeti-Sona, B Cederwall, G de Angelis, E Farnea, A Fitzler, A Gadea, W Gelletly, S Lunardi, O Moller, N Marginean, T Martinez, T Pissulla, C Rusu, C A Ur, R Venturelli, P M Walker, C Wheldon (2005)Lifetime Measurements of Normal Deformed States in Lu-165(71), In: Physical Review C71(1)

Picosecond lifetimes of medium spin states in Lu-165 were measured for the first time. The reaction used to populate the nucleus of interest was La-139(Si-30,4n)Lu-165 at a beam energy of 135 MeV. The beam was provided by the XTU-tandem accelerator of Laboratori Nazionali di Legnaro, Italy. By using the differential decay curve method, lifetimes of 19 states in four different rotational bands were obtained. Therefrom the B(E2) values and the transitional quadrupole moments were deduced. The obtained Q(t) for the different bands are compared with total Routhian surface (TRS) calculations and particle-rotor-model calculations. The TRS calculations predict different axial symmetric shapes for the bands built on the 9/2(-)[514], 9/2(+)[404], and 1/2(-)[541] configurations, with a gamma softness for the 9/2(-)[514] configuration. This band has also been studied using the particle-rotor model, the results of which, however, are consistent with a triaxial shape with a gamma value of -15(p).

C Chandler, PH Regan, B Blank, CJ Pearson, AM Bruce, WN Catford, N Curtis, S Czajkowski, P Dessagne, A Fleury, W Gelletly, J Giovinazzo, R Grzywacz, Z Janas, M Lewitowicz, C Marchand, C Miehe, NA Orr, RD Page, MS Pravikoff, AT Reed, MG Saint-Laurent, SM Vincent, R Wadsworth, DD Warner, JS Winfield, F Xu (2000)Observation of isomeric states in neutron deficient A similar to 80 nuclei following the projectile fragmentation of Mo-92, In: PHYSICAL REVIEW C61(4)ARTN 04430 AMERICAN PHYSICAL SOC
AA Zakari-Issoufou, A Porta, M Fallot, A Algora, JL Tain, E Valencia, S Rice, J Agramunt, J Äystö, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V Eloma, E Estévez, GF Farrelly, A Garcia, W Gelletly, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, MD Jordan, A Kankainen, FG Kondev, T Martinez, E Mendoza, F Molina, I Moore, A Perez, Z Podolyak, H Penttilä, PH Regan, J Rissanen, B Rubio, C Weber (2013)Measurement of fission products β decay properties using a total absorption spectrometer, In: EPJ Web of Conferences62

In a nuclear reactor, the decay of fission fragments is at the origin of decay heat and antineutrino flux. These quantities are not well known while they are very important for reactor safety and for our understanding of neutrino physics. One reason for the discrepancies observed in the estimation of the decay heat and antineutrinos flux coming from reactors could be linked with the Pandemonium effect. New measurements have been performed at the JYFL facility of Jyväskylä with a Total Absorption Spectrometer (TAS) in order to circumvent this effect. An overview of the TAS technique and first results from the 2009 measurement campaign will be presented. © Owned by the authors, published by EDP Sciences, 2013.

A Navin, T Aumann, D Bazin, BA Brown, T Glasmacher, PG Hansen, RW Ibbotson, V Maddalena, BM Sherrill, JA Tostevin, J Yurkon, B Rubio, M Lozano, W Gelletly (1999)Single-particle structure of radioactive beams from one-nucleon knockout reactions, In: EXPERIMENTAL NUCLEAR PHYSICS IN EUROPE495pp. 309-312
S Mohammadi, Z Podolyak, G de Angelis, M Axiotis, D Bazzacco, PG Bizzeti, F Brandolini, R Broda, D Bucurescu, E Farnea, W Gelletly, A Gadea, M Ionescu-Bujor, A Iordachescu, T Kroll, S Longdown, S Lunardi, N Marginean, T Martinez, NH Medina, B Quintana, PH Regan, B Rubio, CA Ur, JJV Dobon, PM Walker, YH Zhang (2004)High-spin states populated in deep-inelastic reactions, In: BRAZILIAN JOURNAL OF PHYSICS34(3A)pp. 792-795
M. A. Bentley, C. Chandler, P. Bednarczyk, F. Brandolini, A. M. Bruce, D. Curien, O. Dorvaux, J. Ekman, E. Farnea, W. Gelletly, D. T. Joss, S. M. Lenzi, D. R. Napoli, J. Nyberg, C. D. O'Leary, S. J. Williams, D. D. Warner (2006)High-spin spectroscopy of natural and unnatural parity states in the mirror-pair 45V/45Ti, In: Physical Review C73(024304)

High-spin states in the proton-rich nucleus 45V have been identified for the first time. A comprehensive gamma-ray decay scheme has been established following an experiment performed at the Vivitron accelerator at IReS Strasbourg by using the Euroball gamma-ray detector array coupled to the Neutron Wall and Euclides detector arrays. The natural (negative-) parity scheme is identified up to the f7/2 band termination in addition to a positive-parity collective structure based on a d3/2 particle-hole excitation. Comparison of this scheme with that of the mirror partner, 45Ti, has yielded detailed information on the variation of Coulomb energy as a function of excitation energy and angular momentum. This is the first time that such an analysis has been performed for a collective structure built on a cross-shell excitation. Comparison of the observed Coulomb energies with those predicted by large-scale shell-model calculations is presented. In this case, unusually, the calculations do not fare as well as for heavier nuclei in the shell. In addition, stark differences between the two nuclei are observed for the decay intensities of the parity-changing E1 decays that de-excite the positive-parity deformed bands.

MA Bentley, SJ Williams, DT Joss, CD O'Leary, AM Bruce, JA Cameron, MP Carpenter, P Fallon, L Frankland, W Gelletly, CJ Lister, G Martinez-Pinedo, A Poves, PH Regan, P Reiter, B Rubio, JS Solano, D Seweryniak, CE Svensson, SM Vincent, DD Warner (2000)Mirror symmetry at high spin in Fe-51 and Mn-51, In: PHYSICAL REVIEW C62(5)ARTN 05130 AMERICAN PHYSICAL SOC
RS Kempley, Z Podolyak, D Bazzacco, A Gadea, E Farnea, JJ Valiente-Dobon, D Mengoni, F Recchia, E Sahin, A Gottardo, L Corradi, E Fioretto, S Szilner, V Anagnostatou, N Al-Dahan, G De Angelis, M Bellato, B Berti, D Bortolato, M Bowry, M Bunce, P Cocconi, A Colombo, Z Dombradi, C Fanin, W Gelletly, R Isocrate, S Ketenci, N Kondratyev, I Kuti, PJR Mason, C Michelagnoli, T Mijatovic, P Molini, G Montagnioli, D Montanari, M Nakhostin, DR Napoli, D Pellegrini, PH Regan, G Rampazzo, P Reiter, D Rosso, F Scarlassara, A Stefanini, P Singh, N Toniolo, CA Ur (2011)CROSS-COINCIDENCES IN THE Xe-136+Pb-208 DEEP-INELASTIC REACTION, In: ACTA PHYSICA POLONICA B42(3-4)pp. 717-720
PH Regan, C Wheldon, AD Yamamoto, CY Wu, S Ashley, P Mumby-Croft, D Seaborne, AO Macchiavelli, D Cline, JF Smith, RS Chakrawarthy, M Cromaz, P Fallon, SJ Freeman, W Gelletly, A Gorgen, A Hayes, H Hua, SD Langdown, IY Lee, CJ Pearson, Z Podolyak, R Teng, JJ Valiente-Dobon (2004)Structural evolution in the (N,Z,I-pi) coordinate frame for A-100, In: NUCLEAR PHYSICS, LARGE AND SMALL726pp. 157-162
AI Morales, J Benlliure, M Gorska, H Grawe, S Verma, PH Regan, Z Podolyak, S Pietri, R Kumar, E Casarejos, A Algora, N Alkhomashi, H Alvarez-Pol, G Benzoni, A Blazhev, P Boutachkov, AM Bruce, LS Caceres, IJ Cullen, AMD Bacelar, P Doornenbal, ME Estevez-Aguado, G Farrelly, Y Fujita, AB Garnsworthy, W Gelletly, J Gerl, J Grebosz, R Hoischen, I Kojouharov, N Kurz, S Lalkovski, Z Liu, C Mihai, F Molina, D Muecher, W Prokopowicz, B Rubio, H Schaffner, SJ Steer, A Tamii, S Tashenov, JJ Valiente-Dobon, PM Walker, HJ Wollersheim, PJ Woods (2013)beta-delayed gamma-ray spectroscopy of Au-203,Au-204 and Pt200-202, In: PHYSICAL REVIEW C88(1)ARTN 0pp. ?-? AMER PHYSICAL SOC
PH Regan, AD Yamamoto, FR Xu, CY Wu, AO Macchiavelli, D Cline, JF Smith, SJ Freeman, JJ Valiente-Dobon, K Andgren, RS Chakrawarthy, M Cromaz, P Fallon, W Gelletly, A Gorgen, A Hayes, H Hua, SD Langdown, IY Lee, CJ Pearson, Z Podolyak, R Teng, C Wheldon (2003)Binary-reaction spectroscopy of Mo-99,Mo-100: Intruder alignment systematics in N=57 and N=58 isotones, In: PHYSICAL REVIEW C68(4)ARTN 0pp. ?-? AMERICAN PHYSICAL SOC
MA Bentley, SJ Williams, DT Joss, CD O'Leary, AM Bruce, L Frankland, JA Cameron, CE Svensson, MP Carpenter, CJ Lister, R Reiter, D Seweryniak, P Fallon, W Gelletly, PH Regan, G Martinez-Pinedo, A Poves, JS Solano, B Rubio, DD Warner (2002)Mirror symmetry and coulomb energies at high angular momentum, In: REVISTA MEXICANA DE FISICA48pp. 123-128
SM Vincent, PH Regan, S Mohammadi, D Blumenthal, M Carpenter, CN Davids, W Gelletly, SS Ghugre, DJ Henderson, RVF Janssens, M Hjorth-Jensen, B Kharraja, CJ Lister, CJ Pearson, D Seweryniak, J Schwartz, J Simpson, DD Warner (1999)Near yrast study of the fpg shell nuclei Ni-58, Cu-61, and Zn-61, In: PHYSICAL REVIEW C60(6)ARTN 06430 AMER PHYSICAL SOC
F Molina, B Rubio, Y Fujita, W Gelletly, J Agramunt, A Algora, J Benlliure, P Boutachkov, L Caceres, RB Cakirli, E Casarejos, C Domingo-Pardo, P Doornenbal, A Gadea, E Ganioglu, M Gascon, H Geissel, J Gerl, M Gorska, J Grebosz, R Hoischen, R Kumar, N Kurz, I Kojouharov, LA Susam, H Matsubara, AI Morales, Y Oktem, D Pauwels, D Perez-Loureiro, S Pietri, Z Podolyak, W Prokopowicz, D Rudolph, H Schaffner, SJ Steer, JL Tain, A Tamii, S Tashenov, JJ Valiente-Dobon, S Verma, H-J Wollersheim (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, In: PHYSICAL REVIEW C91(1)ARTN 01430 AMER PHYSICAL SOC
CS Purry, PM Walker, GD Dracoulis, T Kibedi, FG Kondev, S Bayer, AM Bruce, AP Byrne, W Gelletly, PH Regan, C Thwaites, O Burglin, N Rowley (1998)Multi-quasiparticle isomers and rotational bands in W-178, In: NUCLEAR PHYSICS A632(2)pp. 229-274 ELSEVIER SCIENCE BV
E Valencia, JL Tain, A Algora, J Agramunt, E Estevez, MD Jordan, B Rubio, S Rice, Patrick Regan, William Gelletly, Zsolt Podolyak, M Bowry, P Mason, GF Farrelly, A Zakari-Issoufou, M Fallot, A Porta, VM Bui (2017)Total absorption γ -ray spectroscopy of the β-delayed neutron emitters 87Br, 88Br, and 94Rb, In: Physical Review C: Nuclear Physics024320 American Physical Society

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.

C Schlegel, PH Regan, M Pfutzner, J Gerl, M Hellstrom, Z Podolyak, M Caamano, P Mayet, A Aprahamian, J Benlliure, AM Bruce, PA Butler, DC Gil, DM Cullen, J Doring, T Enquist, E Farget, C Fox, JG Narro, W Gelletly, J Giovinazzo, M Gorska, H Grawe, R Grzywacz, A Kleinbohl, W Korten, M Lewitowicz, R Lucas, H Mach, M Mineva, C O'Leary, F De Oliveira, CJ Pearson, M Rejmund, M Sawicka, H Schaffner, K Schmidt, C Theisen, PM Walker, DD Warner, C Wheldon, HJ Wollersheim, S Wooding, F Xu (2000)K-isomers in very neutron-rich nuclei around mass 180, In: PHYSICA SCRIPTAT88pp. 72-76
N Belcari, G de Angelis, J Eberth, S Skoda, R Wyss, E Farnea, A Gadea, A Algora, M De Poli, E Fioretto, T Martinez, DR Napoli, G Prete, P Spolaore, D Bazzacco, F Brandolini, A Buscemi, R Isocrate, S Lenzi, S Lunardi, R Menegazzo, CM Petrache, P Pavan, CR Alvarez, Z Podolyak, PG Bizzeti, AM Bizzeti-Sona (1999)Absence of blocking effect in the N = Z odd-odd nucleus Ga-62: a new signature of the n-p pairing?, In: EXPERIMENTAL NUCLEAR PHYSICS IN EUROPE495pp. 193-194
AA Zakari-Issoufou, A Algora, J Agramunt, J Aysto, M Bowry, VM Bui, R Caballero-Folch, D Cano-Ott, V Eloma, E Estevez, M Fallot, GF Farrelly, A Garcia, W Gelletly, MB Gomez-Hornillos, V Gorlychev, J Hakala, A Jokinen, MD Jordan, A Kankainen, FG Kondev, T Martinez, E Mendoza, F Molina, I Moore, A Perez, A Porta, Z Podolyak, H Penttila, PH Regan, S Rice, J Rissanen, B Rubio, JL Tain, E Valencia, C Weber (2013)The total absorption spectroscopy technique for reactor technology and basic nuclear physics, In: IEEE Nuclear Science Symposium Conference Record

Understanding the β-decay properties of fission products is very important for nuclear reactor monitoring & safety. Indeed, the β-decay of fission products is a source of power during nuclear reactor operation and after, this activity is the main contributor to the decay-heat representing ∼7-8% of a reactor nominal power. β-decay is also at the origin of the antineutrinos coming from nuclear reactor. The study of antineutrinos is mandatory for nuclear safeguard policies based on antineutrino detection. But there are still some discrepancies in the calculation of the decay-heat and antineutrino spectra. One reason of the distortions observed seems to be linked to the Pandemonium effect. In order to improve the accuracy in the prediction of these quantities, new measurements of fission products β-decay properties, not sensitive to this effect, have been performed with a Total Absorption spectrometer (TAS). An overview of the TAS technique and first results from the latest experiment will be presented. © 2013 IEEE.