Interference between spherical and deformed states in 190Pb

被引：60

作者：

Dracoulis, GD ^{[1
]}

Byrne, AP

Baxter, AM

机构：

[1] Australian Natl Univ, Dept Phys Nucl, RSPHYSSE, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, Dept Phys & Theoret Phys, Fac Sci, Canberra, ACT 0200, Australia

来源：

PHYSICS LETTERS B | 1998年 / 432卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)00620-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The level scheme of Pb-190 identified in the Er-166(Si-28,4n)Pb-190 reaction includes several long isomers and exhibits structures which can be associated with cc-existing spherical, oblate and prolate configurations. A chance near-degeneracy between 8(+) states from the competing configurations causes mixing and fragmentation of the observed E3 and E2 decays from the yrast 11(-) and 10(+) states, through interference. The candidate identified for the prolate band is approximately 500 keV higher than that observed in Pb-188. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：37 / 44

页数：8

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