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

被引：35
|
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
收藏
页码：305 / 308
页数：4
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