Pairing and isospin symmetry in proton-rich nuclei

被引：153
|
作者：
Engel, J
Langanke, K
Vogel, P
机构：
[1] CALTECH,WK KELLOGG RADIAT LAB,PASADENA,CA 91125
[2] CALTECH,DEPT PHYS,PASADENA,CA 91125
来源：
PHYSICS LETTERS B | 1996年 / 389卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0370-2693(96)01294-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Unlike their lighter counterparts, most odd-odd N = Z nuclei with mass A > 40 have ground states with isospin T = 1, suggesting an increased role for the isovector pairing interaction. A simple SO(5) seniority-like model of this interaction reveals a striking and heretofore unnoticed interplay between like-particle and neutron-proton isovector pairing near N = Z that is reflected in the number of each kind of pair as a function of A and T. Large scale shell-model calculations exhibit the same trends, despite the simultaneous presence of isoscalar pairs, deformation, and other correlations.
引用
收藏
页码：211 / 216
页数：6
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