Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model

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	Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model
	Guo, SQ ; Bao, XJ ; Li, JQ ; Zhang, HF
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2014
卷号	61 期号:5 页码:629-635
关键词	QUASI-MOLECULAR SHAPES FUSION BARRIERS NUCLEAR-FISSION HUMPED FISSION DEFORMATION HEAVY EMISSION ELEMENTS ENERGY MASSES
ISSN号	0253-6102
通讯作者	Guo, SQ (reprint author), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China.
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.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [11175074, 11120101005, 11105035, 10805061]; Fundamental Research Funds for the Central Universities [lzujbky-2012-5]; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01]
语种	英语
WOS记录号	WOS:000336268700015
公开日期	2015-06-03
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15768]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Guo, SQ,Bao, XJ,Li, JQ,et al. Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,61(5):629-635.
APA	Guo, SQ,Bao, XJ,Li, JQ,&Zhang, HF.(2014).Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model.COMMUNICATIONS IN THEORETICAL PHYSICS,61(5),629-635.
MLA	Guo, SQ,et al."Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model".COMMUNICATIONS IN THEORETICAL PHYSICS 61.5(2014):629-635.