Gound State Properties of Nuclei in (295)118 alpha-Decay Chain

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 近代物理研究所知识存储（2010之前）

	Gound State Properties of Nuclei in (295)118 alpha-Decay Chain
	Dong Jian-Min 1; Zhang Hong-Fei 1; Zuo Wei1,2 ; Wang Yan-Zhao 1; Li Jun-Qing 1,2
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2009-12-01
卷号	52 期号:6 页码:1055-1061
关键词	superheavy nuclei relativistic mean field half-lives cluster model generalized liquid drop model
ISSN号	0253-6102
英文摘要	The properties of nuclei belonging to the alpha-decay chain of superheavy element (295)118 have been studied in the framework of axially deformed relativistic mean field (RMF) theory with the parameter set of NL-Z2 in the blocked BCS approximation. Some ground state properties such as binding energies, deformations, and alpha-decay energies Q(alpha) have been obtained and agree well with those from finite-range droplet model (FRDM). The single-particle spectra of nuclei in (295)118 alpha-decay chain show that the shell gaps present obviously nucleon number dependence. The root-mean-square (rms) radii of proton, neutron and matter distributions change slowly from (283)112 to (295)118 but dramatically from (279)110 to (283)112, which may be due to the subshell closure at Z = 110 in (279)110. The alpha-decay half-lives in (295)118 decay chain are evaluated by employing the cluster model and the generalized liquid drop model (GLDM), and the overall agreement is found when they are compared with the known experimental data. The alpha-decay lifetimes obtained from the cluster model are slightly larger than those of GLDM ones. Finally, we predict the alpha-decay half-lives of Z = 118, 116, 114, 112 isotopes using the cluster model and GLDM, which also indicate these two models can corroborate each other in studies on superheavy nuclei. The results from GLDM are always lower than those obtained from the cluster model.
资助项目	Natural Science Foundation of China[10775061] ; Natural Science Foundation of China[10505016] ; Natural Science Foundation of China[10575119] ; Natural Science Foundation of China[10805016] ; CAS Knowledge Innovation Project[KJCX-SYW-N02] ; Major State Basic Research Developing Program of China[2007CB815004]
WOS关键词	HARTREE-BOGOLIUBOV THEORY ; QUASI-MOLECULAR SHAPES ; NEUTRON-DRIP-LINE ; MEAN-FIELD-THEORY ; SUPERHEAVY NUCLEI ; HEAVIEST NUCLEI ; HALF-LIVES ; EMISSION ; ELEMENTS ; MASSES
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000273052500015
资助机构	Natural Science Foundation of China ; CAS Knowledge Innovation Project ; Major State Basic Research Developing Program of China
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/5259]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者	Dong Jian-Min
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	Dong Jian-Min,Zhang Hong-Fei,Zuo Wei,et al. Gound State Properties of Nuclei in (295)118 alpha-Decay Chain[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2009,52(6):1055-1061.
APA	Dong Jian-Min,Zhang Hong-Fei,Zuo Wei,Wang Yan-Zhao,&Li Jun-Qing.(2009).Gound State Properties of Nuclei in (295)118 alpha-Decay Chain.COMMUNICATIONS IN THEORETICAL PHYSICS,52(6),1055-1061.
MLA	Dong Jian-Min,et al."Gound State Properties of Nuclei in (295)118 alpha-Decay Chain".COMMUNICATIONS IN THEORETICAL PHYSICS 52.6(2009):1055-1061.