New numerical method for fission half-lives of heavy and superheavy nuclei at ground and excited states

doi:10.1016/j.nuclphysa.2014.07.003

	New numerical method for fission half-lives of heavy and superheavy nuclei at ground and excited states
	Gao, Jie 1; Bao, Xiaojun 1; Zhang, Haifei 1; Li, Junqing 1,2; Zhang, Hongfei 1
刊名	NUCLEAR PHYSICS A
	2014-09-01
卷号	929 页码:246-259
关键词	Spontaneous Fission Excited Fission Numerical Method Wkb Approximation
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2014.07.003
文献子类	Article
英文摘要	The spontaneous fission half-lives for heavy and superheavy nuclei between U and Hs isotopes are calculated in framework of the generalized liquid drop model by applying a new method of numerically solving Schrodinger equation compared with the semi-empirical WKB approximation. The calculated half-lives are in very good agreement with the experimental data, indicating the reliability of the new approach. The second part of this work is to estimate the fission half-lives of Np-238* at excited state of 7.3 MeV and U-239* at excited states of 7.081, 8.078, 8.387 and 8.989 MeV with the numerical method. The estimated results compared with the experimental values and with the results by WKB approximation show the numerical method is applicable to both the spontaneous fission and excited fission. (C) 2014 Elsevier B.V. All rights reserved.
资助项目	CAS Knowledge Innovation[KJCX-SYW-N02]
WOS关键词	QUASI-MOLECULAR SHAPES ; LIQUID-DROP MODEL ; ASYMMETRIC FISSION ; BARRIERS ; FUSION ; DEFORMATIONS ; LIFETIMES ; ENERGIES ; EMISSION ; MASSES
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000341464900019
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/49589]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Hongfei
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
推荐引用方式 GB/T 7714	Gao, Jie,Bao, Xiaojun,Zhang, Haifei,et al. New numerical method for fission half-lives of heavy and superheavy nuclei at ground and excited states[J]. NUCLEAR PHYSICS A,2014,929:246-259.
APA	Gao, Jie,Bao, Xiaojun,Zhang, Haifei,Li, Junqing,&Zhang, Hongfei.(2014).New numerical method for fission half-lives of heavy and superheavy nuclei at ground and excited states.NUCLEAR PHYSICS A,929,246-259.
MLA	Gao, Jie,et al."New numerical method for fission half-lives of heavy and superheavy nuclei at ground and excited states".NUCLEAR PHYSICS A 929(2014):246-259.