Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model

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	Guo, SQ; Bao, XJ; Li, JQ; Zhang, HF; Guo, SQ (reprint author), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China.
	Spontaneous Fission Barriers Based on a Generalized Liquid Drop Model
发表期刊	COMMUNICATIONS IN THEORETICAL PHYSICS
语种	英语
关键词	Quasi-molecular Shapes Fusion Barriers Nuclear-fission Humped Fission Deformation Heavy Emission Elements Energy Masses
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.
	2014
ISSN	0253-6102
卷号	61 期号:5 页码:629-635
学科领域	Physics
收录类别	SCI
项目资助者	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] ; 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] ; 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] ; 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]
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/15768
专题	理论物理所科研产出_SCI论文
通讯作者	Guo, SQ (reprint author), Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China.
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,&Guo, SQ .(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.