Shape-changing particle decays of 185Bi and structure of the lightest odd-mass Bi isotopes -: art. no. 054308

被引：45

作者：

Andreyev, AN ^{[1
]}

Ackermann, D

Hessberger, FP

Heyde, K

Hofmann, S

Huyse, M

Karlgren, D

Kojouharov, I

Kindler, B

Lommel, B

Münzenberg, G

Page, RD

de Vel, KV

Van Duppen, P

Walters, WB

Wyss, R

机构：

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

[2] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[3] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[4] Univ Ghent, Vakgrp Subatomaire & Stralingsfys, B-9000 Ghent, Belgium

[5] Goethe Univ Frankfurt, Inst Phys, D-60054 Frankfurt, Germany

[6] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[7] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden

[8] Univ Maryland, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW C | 2004年 / 69卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevC.69.054308

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：

Proton and alpha decay of the proton-rich nuclide Bi-185 has been restudied in more detail in the complete fusion reaction Nb-93(Mo-95, 3n)Bi-185 at the velocity filter SHIP. The observed decay pattern of Bi-185 and of the heavier odd-mass isotopes Bi-187,Bi-189,Bi-191,Bi-193 are interpreted based on potential-energy surface calculations. It is shown that the experimental systematics of the particle decays and of the excited states in these nuclei (where known) can be explained by the prolate-oblate shape co-existence at low excitation energy. The observed state in Bi-185 is proposed to be of prolate nature, which is in contrast with the previously proposed oblate interpretation.

引用

页码：054308 / 1

页数：14

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