Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model

	Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model
	Guo Shu-Qing 1; Bao Xiao-Jun 1; Li Jun-Qing 1,2,3,4; Zhang Hong-Fei 1,3,4
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2014-05-01
卷号	61 页码:629-635
关键词	Spontaneous Fission Generalized Liquid Drop Model Shell Correction
ISSN号	0253-6102
文献子类	Article
英文摘要	The barrier against the spontaneous fission has been determined within the Generalized Liquid Drop Model (GLDM) including the mass and charge asymmetry, and the proximity energy. The shell correction of the spherical parent nucleus is calculated by using the Strutinsky method, and the empirical shape-dependent shell correction is employed during the deformation process. A quasi-molecular shape sequence has been defined to describe the whole process from one-body shape to two-body shape system, and a two-touching-ellipsoid is adopted when the superdeformed one-body system reaches the rupture point. On these bases the spontaneous fission barriers are systematically studied for nuclei from Th-230 to (249) Cm for different possible exiting channels with the different mass and charge asymmetries. The double, and triple bumps are found in the fission potential energy in this region, which roughly agree with the experimental results. It is found that at around Sn-like fragment the outer fission barriers are lower, while the partner of the Sn-like fragment is in the range near Ru-108 where the ground-state mass is lowered by allowing axially symmetric shapes. The preferable fission channels are distinctly pronounced, which should be corresponding to the fragment mass distributions.
资助项目	Knowledge Innovation Project of the Chinese Academy of Sciences[KJCX2-EW-N01]
WOS关键词	QUASI-MOLECULAR SHAPES ; FUSION BARRIERS ; NUCLEAR-FISSION ; HUMPED FISSION ; DEFORMATION ; HEAVY ; EMISSION ; ELEMENTS ; ENERGY ; MASSES
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000336268700015
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49255]
专题	中国科学院近代物理研究所
通讯作者	Guo Shu-Qing
作者单位	1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guo Shu-Qing,Bao Xiao-Jun,Li Jun-Qing,et al. Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,61:629-635.
APA	Guo Shu-Qing,Bao Xiao-Jun,Li Jun-Qing,&Zhang Hong-Fei.(2014).Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model.COMMUNICATIONS IN THEORETICAL PHYSICS,61,629-635.
MLA	Guo Shu-Qing,et al."Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model".COMMUNICATIONS IN THEORETICAL PHYSICS 61(2014):629-635.