Multi-phonon γ-vibrational bands in odd-mass nuclei studied by triaxial projected shell model approach

被引：38

作者：

Sheikh, J. A. ^{[2
,3
]}

Bhat, G. H. ^{[2
]}

Sun, Y. ^{[1
,3
,4
]}

Palit, R. ^{[5
]}

机构：

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

[2] Univ Kashmir, Dept Phys, Srinagar 190006, Jammu & Kashmir, India

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[4] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[5] Tata Inst Fundamental Res, Dept Nucl & Atom Phys, Mumbai, Maharashtra, India

来源：

PHYSICS LETTERS B | 2010年 / 688卷 / 4-5期

基金：

中国国家自然科学基金;

关键词：

Multi-phonon gamma-vibration; Odd-mass nuclei; Triaxial projected shell model approach; DEFORMED-NUCLEI; STATES; ISOTOPES;

D O I：

10.1016/j.physletb.2010.04.027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Inspired by the recent experimental data [J.-G. Wang, et al., Phys. Lett. B 675 (2009) 420], we extend the triaxial projected shell model approach to study the gamma-band structure in odd-mass nuclei. As a first application of the new development, the gamma-vibrational structure of Nb-103 is investigated. It is demonstrated that the model describes the ground-state band and multi-phonon gamma-vibrations quite satisfactorily, supporting the interpretation of the data as one of the few experimentally-known examples of simultaneous occurrence of one- and two-gamma-phonon vibrational bands. This generalizes the well-known concept of the surface gamma-oscillation in deformed nuclei built on the ground-state in even-even systems to gamma-bands based on quasiparticle configurations in odd-mass systems. (c) 2010 Elsevier BM. All rights reserved.

引用

页码：305 / 308

页数：4

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