Cranked shell model and isospin symmetry near N=Z

被引：74

作者：

Frauendorf, SG

Sheikh, JA

机构：

[1] Rossendorf Inc, Res Ctr, IKHP, D-01314 Dresden, Germany

[2] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[3] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

NUCLEAR PHYSICS A | 1999年 / 645卷 / 04期

关键词：

proton-neutron pairing; rotational spectra; isospin symmetry;

D O I：

10.1016/S0375-9474(98)00624-1

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 cranked shell model approach for the description of rotational bands in N approximate to Z nuclei is formulated. The isovector neutron-proton pairing is taken into account explicitly. The concept of spontaneous breaking and subsequent restoration of the isospin symmetry turns out to be crucial. The general rules to construct the near yrast spectra for rotating nuclei are presented, For the model case of particles in a j-shell, it is shown that excitation spectra and the alignment processes are well described as compared to the exact shell model calculation, Realistic cranked shell model calculations are able to describe the experimental spectra of Kr-72,Kr-73 and Rb-74 isotopes. (C) 1999 Elsevier Science B.V.

引用

页码：509 / 535

页数：27

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