Backbending phenomenon in 48Cr

被引：19
作者：
Tanaka, T
Iwasawa, K
Sakata, F
机构：
[1] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan
[2] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[3] Ibaraki Univ, Dept Math Sci, Mito, Ibaraki 3108512, Japan
来源：
PHYSICAL REVIEW C | 1998年 / 58卷 / 05期
关键词：
D O I：
10.1103/PhysRevC.58.2765
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：
A new mechanism for the backbending phenomenon in Cr-48 is discussed based on a careful analysis of the yrast band, where no level crossing of the single-particle orbits is expected. A newly developed numerical code for solving the self-consistent cranked Hartree-Fock-Bogoliubov (HFB) equation with a maximum overlap criterion is applied to Cr-48, and various continuous cranked HFB solutions forming many rotational bands are obtained. By using the first derivative of the cranked HFB wave function with respect to the total angular momentum, and by comparing the Thouless-Valatin and the Inglis moments of inertia, it is pointed out that a fully self-consistent mean-field treatment, which properly takes into account the two-body residual interaction, is crucial in explaining cases of backbending phenomena that are not associated with a single-particle level crossing. [S0556-2813(98)00211-8].
引用
收藏
页码：2765 / 2776
页数：12
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