A simple systematical law of E-21(+) values for heavy nuclei in the NpNn, scheme and the evolution of the Z=64 shell gap

	A simple systematical law of E-21(+) values for heavy nuclei in the NpNn, scheme and the evolution of the Z=64 shell gap
	Zhe-Yong, Fan ; Zhong-Zhou, Iren ; Chang, Xu
刊名	CHINESE PHYSICS LETTERS
	2007-09-01
卷号	24 页码:2555-2558
ISSN号	0256-307X
英文摘要	A systematics of excitation energy of the first 2(+) state E21+ in even-even heavy nuclei (A >= 120) is studied in the NpNn scheme. It is found that a simple exponential function describes the dependence of E21+ values on NpNn values very well. In addition, the Z = 64 shell gap is reexamined by investigating the systematics of the 52 <= Z <= 66 region. It is found that the Z = 64 shell gap is largest at N = 82 and becomes smaller with either increasing or decreasing of neutron numbers. The effects of this shell gap become negligible for counting the valence proton numbers when N >= 92 or N <= 72.
WOS关键词	INTERACTING BOSON MODEL ; DEFORMATION ; TRANSITION ; SYMMETRY ; STATES
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000248961100025
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/27965]
专题	中国科学院近代物理研究所
通讯作者	Chang, Xu
作者单位	1.Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China 2.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhe-Yong, Fan,Zhong-Zhou, Iren,Chang, Xu. A simple systematical law of E-21(+) values for heavy nuclei in the NpNn, scheme and the evolution of the Z=64 shell gap[J]. CHINESE PHYSICS LETTERS,2007,24:2555-2558.
APA	Zhe-Yong, Fan,Zhong-Zhou, Iren,&Chang, Xu.(2007).A simple systematical law of E-21(+) values for heavy nuclei in the NpNn, scheme and the evolution of the Z=64 shell gap.CHINESE PHYSICS LETTERS,24,2555-2558.
MLA	Zhe-Yong, Fan,et al."A simple systematical law of E-21(+) values for heavy nuclei in the NpNn, scheme and the evolution of the Z=64 shell gap".CHINESE PHYSICS LETTERS 24(2007):2555-2558.