Nature of gamma deformation in Ge and Se nuclei and the triaxial projected shell model description

doi:10.1103/PhysRevC.89.014328

	Nature of gamma deformation in Ge and Se nuclei and the triaxial projected shell model description
	Bhat, G. H.1; Dar, W. A.1; Sheikh, J. A.1,2; Sun, Y.2,3,4
刊名	PHYSICAL REVIEW C
	2014-01-30
卷号	89
ISSN号	0556-2813
DOI	10.1103/PhysRevC.89.014328
文献子类	Article
英文摘要	Recent experimental data have demonstrated that Ge-76 may be a rare example of a nucleus exhibiting rigid gamma deformation in the low-spin regime. In the present work, the experimental analysis is supported by microscopic calculations using the multi-quasiparticle triaxial projected shell model (TPSM) approach. It is shown that to best describe the data of both yrast and gamma-vibrational bands in Ge-76, a rigid-triaxial deformation parameter gamma approximate to 30 degrees is required. TPSM calculations are discussed in conjunction with the experimental observations and also with the published results from the spherical shell model. The occurrence of a gamma gamma band in Ge-76 is predicted with the bandhead at an excitation energy of similar to 2.5 MeV. We have also performed TPSM study for the neighboring Ge and Se isotopes and the distinct gamma-soft feature in these nuclei is shown to result from configuration mixing of the ground-state with multi-quasiparticle states.
资助项目	973 Program of China[2013CB834401]
WOS关键词	DATA SHEETS ; BAND STRUCTURE ; EXCITATIONS ; ISOTOPES
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000332159800003
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49601]
专题	中国科学院近代物理研究所
通讯作者	Sun, Y.
作者单位	1.Univ Kashmir, Dept Phys, Srinagar 190006, Jammu & Kashmir, India 2.Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA 3.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Bhat, G. H.,Dar, W. A.,Sheikh, J. A.,et al. Nature of gamma deformation in Ge and Se nuclei and the triaxial projected shell model description[J]. PHYSICAL REVIEW C,2014,89.
APA	Bhat, G. H.,Dar, W. A.,Sheikh, J. A.,&Sun, Y..(2014).Nature of gamma deformation in Ge and Se nuclei and the triaxial projected shell model description.PHYSICAL REVIEW C,89.
MLA	Bhat, G. H.,et al."Nature of gamma deformation in Ge and Se nuclei and the triaxial projected shell model description".PHYSICAL REVIEW C 89(2014).