A SHAPE COEXISTENCE INTERPRETATION OF THE PHENOMENOLOGY OF ALIGNMENT CURVES IN OS AND RE ISOTOPES

被引：24

作者：

BARK, RA

机构：

[1] Dept. of Nucl. Phys., Res. Sch. of Phys. Sci., Australian Nat. Univ., Canberra, ACT

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1991年 / 17卷 / 08期

关键词：

D O I：

10.1088/0954-3899/17/8/011

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 model of shape coexistence, based on an intruder pi-(h9/2)2 excitation, previously applied to explain low-frequency upbending phenomena in 171Re and 172Os, is extended to heavier Os and Re isotopes. A phenomenological three-band mixing analysis of the yrast bands of even Os nuclei and the 5/2+[402] and 9/2-[514] bands of the neighbouring Re isotopes is used to deduce the excitation energies of the proposed intruder configuration as a function of neutron number. These are shown to be qualitatively consistent with an (h9/2)2 excitation. The implications of this model for other nuclei are discussed.

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页码：1209 / 1222

页数：14

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