High-spin structure beyond band termination in 157Er -: art. no. 252502

被引：31

作者：

Evans, AO ^{[1
]}

Paul, ES

Simpson, J

Riley, MA

Appelbe, DE

Campbell, DB

Choy, PTW

Clark, RM

Cromaz, M

Fallon, P

Görgen, A

Joss, DT

Lee, IY

Macchiavelli, AO

Nolan, PJ

Pipidis, A

Ward, D

Ragnarsson, I

Saric, F

机构：

[1] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[2] SERC, Daresbury Lab, CCLRC, Warrington WA4 4AD, Cheshire, England

[3] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[5] Lund Inst Technol, Dept Math Phys, S-22100 Lund, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 25期

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.92.252502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular-momentum induced transition from a deformed state of collective rotation to a noncollective configuration has been studied. In Er-157 this transition manifests itself as favored band termination near I=45 (h) over bar. The feeding of these band terminating states has been investigated for the first time using the Gammasphere spectrometer. Many weakly populated states lying at high excitation energy that decay into these special states have been discovered. Cranked Nilsson-Strutinsky calculations suggest that these states arise from weakly collective "core-breaking" configurations.

引用

页码：252502 / 1

页数：4

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