Distribution of E2 excitations in sd-shell nuclei

被引：4
|
作者：
Utsuno, Y
Otsuka, T
Nakada, H
机构：
[1] RIKEN,WAKO,SAITAMA 35101,JAPAN
[2] CHIBA UNIV,DEPT PHYS,INAGE KU,CHIBA 263,JAPAN
来源：
PHYSICS LETTERS B | 1997年 / 397卷 / 1-2期
基金：
日本学术振兴会;
关键词：
Q-phonon scheme; shell model; SU(3) symmetry;
D O I：
10.1016/S0370-2693(97)00154-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The distribution of E2 excitations from the ground state is studied for sd-shell even-even nuclei by a realistic shell-model. It is shown that the Q-phonon scheme for the 2(1)(+) state is quite reasonable in this region. The origin of the deviations from the pure Q-phonon scheme can be explained in terms of a Hamiltonian with broken SU(3) symmetry. The symmetry breaking is generated by non-degenerate single particle energies. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码：6 / 12
页数：7
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