Shell gaps and pn pairing interaction in N = Z nuclei
Nuclear Theory
2009-03-04 v1 Nuclear Experiment
Abstract
We analyze the observed shell gaps in N=Z nuclei determined from the binding energy differences. It is found that the shell gaps can be described by the combined contributions from the single-particle level spacing, the like-nucleon pairing, and the proton-neutron pairing interaction. This conclusion is consistent with that of Chasman in Phys. Rev. Lett. 99 (2007) 082501. For the double-closed shell N=Z nuclei, the single-particle level spacings calculated with Woods-Saxon potential are very close to those obtained by subtracting the nn pairing interaction from the observed shell gap. For the sub-closed or non-closed shell N=Z nuclei, the pn pairing interaction is shown to be important for the observed shell gaps.
Cite
@article{arxiv.0811.4093,
title = {Shell gaps and pn pairing interaction in N = Z nuclei},
author = {Kazunari Kaneko and Jing-ye Zhang and Yang Sun},
journal= {arXiv preprint arXiv:0811.4093},
year = {2009}
}
Comments
9 pages, 5 figures