Evidence for shape coexistence in 98Mo

被引：45

作者：

Thomas, T. ^{[1
,2
]}

Nomura, K. ^{[1
,3
]}

Werner, V. ^{[2
]}

Ahn, T. ^{[2
]}

Cooper, N. ^{[2
]}

Duckwitz, H. ^{[1
]}

Hinton, M. ^{[2
,4
]}

Ilie, G. ^{[2
]}

Jolie, J. ^{[1
]}

Petkov, P. ^{[1
,5
]}

Radeck, D. ^{[1
]}

机构：

[1] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[2] Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06520 USA

[3] CEA DSM CNRS IN2P3, Grand Accelerateur Natl Ions Lourds, F-14076 Caen 05, France

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

[5] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria

来源：

PHYSICAL REVIEW C | 2013年 / 88卷 / 04期

关键词：

STATE; TRANSITIONS; MODEL;

D O I：

10.1103/PhysRevC.88.044305

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 gamma gamma angular-correlation experiment has been performed to investigate the low-energy states of the nucleus Mo-98. The new data, including spin assignments, multipole mixing ratios, and lifetimes reveal evidence for shape coexistence and mixing in Mo-98, arising from a proton intruder configuration. This result is reproduced by a theoretical calculation within the proton-neutron interacting boson model with configuration mixing, based on microscopic energy density functional theory. The microscopic calculation indicates the importance of the proton particle-hole excitation across the Z = 40 subshell closure and the subsequent mixing between spherical vibrational and the gamma-soft equilibrium shapes in Mo-98.

引用

页数：6

共 50 条

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[3] Description of the Shape Coexistence in 98Mo with IBM2
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