My research project
Investigating the N=28 magic number through 47K(d,p)48K
This project probes nuclear structure – especially the evolution of magic numbers – by measuring the spectroscopic factors of 47K+n compared to the single-particle state of 48K. This is especially interesting as 47K (N=28) and 48K (N=29) lie below Z=20, where there is suggestion that the N=28 magic number breaks. The mixing of states in 48K will be quantified by the measurement of spectroscopic factors, which can be used to verify present theoretical predictions. This research will centre on the analysis of a 47K(d,p)48K reaction experiment that will be performed in early 2021 at GANIL, France.
Physical Review Letters 127, 112701 (2021) We have performed the first direct measurement of the 83Rb(p,g) radiative capture reaction cross section in inverse kinematics using a radioactive beam of 83Rb at incident energies of 2.4 and 2.7 A MeV. The measured cross section at an effective relative kinetic energy of Ecm = 2.393 MeV, which lies within the relevant energy window for core collapse supernovae, is smaller than the prediction of statistical model calculations. This leads to the abundance of 84Sr produced in the astrophysical p process being higher than previously calculated. Moreover, the discrepancy of the present data with theoretical predictions indicates that further experimental investigation of p-process reactions involving unstable projectiles is clearly warranted.