Nuclear spectroscopy with fast exotic beams: News on N = 28 from recent NSCL measurements

International Symposium on Exotic Nuclear Structure From Nucleons 2012

Gade, Alexandra^1

National Superconducting Cyclotron Laboratory, Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, United States^1

关键词: Nuclear potentials;    Nuclear spectroscopy;    Nuclear structure physics;    Proton and neutron;    Shell evolutions;    Shell structure;    Single-particle orbitals;    Structural evolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/445/1/012006/pdf
DOI  :  10.1088/1742-6596/445/1/012006

来源: IOP

【 摘 要 】

The nuclear potential and resulting shell structure are well established for the valley of stability, however, dramatic modifications to the familiar ordering of single-particle orbitals in rare isotopes with a large imbalance of proton and neutron numbers have been found: new shell gaps emerge and conventional magic numbers are no longer valid. Current efforts in nuclear structure physics are aimed at unraveling the driving forces behind this structural evolution, which was found most dramatic in neutron-rich species. This manuscript will outline some of the recent efforts at NSCL aimed at shedding light on the shell evolution around neutron number N = 28 in neutron-rich Ar, Cl and Si isotopes.