Transition from spherical to deformed shapes of nuclei in the Monte Carlo shell model

被引：68

作者：

Shimizu, N ^{[1
]}

Otsuka, T

Mizusaki, T

Honma, M

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[2] RIKEN, Wako, Saitama 3510198, Japan

[3] Senshu Univ, Dept Law, Kawasaki, Kanagawa 2148580, Japan

[4] Univ Aizu, Ctr Math Sci, Fukushima 9658580, Japan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.86.1171

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transition from spherical to deformed shapes is studied in terms of large-scale shell-model calculations for Ba isotopes as a function of valence nucleon number with fixed single-particle space and Hamiltonian. A new version of the Monte Carlo shell model is introduced so as to incorporate pairing correlations efficiently, by utilizing condensed pair bases. The energy levels and electromagnetic matrix elements are described in agreement with experiments throughout the transitional region. The orbital M1 sum rule is calculated as a measure of the deformation evolution, and the Q-phonon picture is shown to be reasonable from spherical to deformed nuclei.

引用

页码：1171 / 1174

页数：4

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