Rotation-driven prolate-to-oblate shape phase transition in 190W:: A projected shell model study

被引：40

作者：

Sun, Yang ^{[1
,1
,2
]}

Walker, Philip M. ^{[3
]}

Xu, Fu-Rong ^{[4
,6
]}

Liu, Yu-Xin ^{[5
,6
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

[2] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA

[3] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[4] Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China

[5] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[6] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China

来源：

PHYSICS LETTERS B | 2008年 / 659卷 / 1-2期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会; 高等学校博士学科点专项科研基金; 美国国家科学基金会;

关键词：

prolate and oblate shapes; shape phase transition; rotation alignment; projected shell model;

D O I：

10.1016/j.physletb.2007.10.067

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A shape phase transition is demonstrated to occur in W-190 by applying the projected shell model, which goes beyond the usual mean-field approximation. Rotation alignment of neutrons in the high-j, i(13/2) orbital drives the yrast sequence of the system, changing suddenly from prolate to oblate shape at angular momentum 10h. We propose observables to test the picture. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：165 / 169

页数：5

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