Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives

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	Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives
	Ni, DD ; Ren, ZZ ; Dong, TK ; Qian, YB
刊名	PHYSICAL REVIEW C
	2013
卷号	87 期号:2 页码:24310
关键词	SPONTANEOUS FISSION ELEMENTS SYSTEMATICS SCATTERING EMISSION MODEL
ISSN号	0556-2813
通讯作者	Ni, DD (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
英文摘要	The radius of a nucleus is one of the important quantities in nuclear physics. Although there are many researches on ground-state properties of superheavy nuclei, researches on charge radii of superheavy nuclei are rare. In this article, nuclear root-mean-square (rms) charge radii of heavy and superheavy nuclei are extracted from the experimental alpha-decay data. alpha-decay calculations are performed within the generalized density-dependent cluster model, where alpha-decay half-lives are evaluated using quasibound state wave functions. The charge distribution of daughter nuclei is determined in the double-folding model to reproduce the experimental alpha-decay half-lives. The rms charge radius is then calculated using the resulting charge distribution. In addition, a simple formula is also proposed to calculate nuclear charge radii with the experimental alpha-decay energies and half-lives. The formula is directly derived from the Wentzel-Kramers-Brillouin barrier penetration probability with some approximations. The two different methods show good agreement with the experimental data for even-even nuclei, and the deduced results are consistent with other theoretical models. Moreover, nuclear radii of heavy and superheavy nuclei with Z = 98-116 are extracted from the alpha-decay data, for which alpha decay is a unique tool to probe nuclear sizes at present. This is the first result on nuclear charge radii of superheavy nuclei based on the experimental alpha-decay data. DOI: 10.1103/PhysRevC.87.024310
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [11035001, 10975072, 11120101005]; 973 National Major State Basic Research and Development of China [2013CB834400, 2010CB327803]; CAS [KJCX2-SW-N02]; Research Fund of Doctoral Point [20100091110028]; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); Science and Technology Development Fund of Macau [068/2011/A]
原文出处	http://dx.doi.org/10.1103/PhysRevC.87.024310
语种	英语
WOS记录号	WOS:000314876700005
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15416]
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	Ni, DD,Ren, ZZ,Dong, TK,et al. Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives[J]. PHYSICAL REVIEW C,2013,87(2):24310.
APA	Ni, DD,Ren, ZZ,Dong, TK,&Qian, YB.(2013).Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives.PHYSICAL REVIEW C,87(2),24310.
MLA	Ni, DD,et al."Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives".PHYSICAL REVIEW C 87.2(2013):24310.