Pair-truncated shell-model approach to backbending and low-lying states in 132Ba -: art. no. 044305

被引：45
|
作者：
Higashiyama, K [1 ]
Yoshinaga, N [1 ]
Tanabe, K [1 ]
机构：
[1] Saitama Univ, Dept Phys, Saitama 3388570, Japan
来源：
PHYSICAL REVIEW C | 2003年 / 67卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.67.044305
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Backbending phenomena and low-lying collective states in the nucleus Ba-132 are studied in terms of a pair-truncated shell model with the monopole and quadrupole pairing plus quadrupole-quadrupole interaction. The model reproduces well experimental energy levels, transition rates, and g factors for both low-lying states and those around the backbending region. The collective pair truncation of the shell-model space yields remarkable results for low-lying states, and the alignment of two 0h(11/2) neutrons plays a decisive role in describing the backbending.
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页数：7
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