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题名: Nuclear charge radii of heavy and superheavy nuclei from the experimental alpha-decay energies and half-lives
作者: Ni, DD ;  Ren, ZZ ;  Dong, TK ;  Qian, YB
刊名: PHYSICAL REVIEW C
出版日期: 2013
卷号: 87, 期号:2, 页码:24310
关键词: SPONTANEOUS FISSION ;  ELEMENTS ;  SYSTEMATICS ;  SCATTERING ;  EMISSION ;  MODEL
学科分类: Physics
通讯作者: Ni, DD (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
部门归属: [Ni, Dongdong; Ren, Zhongzhou; Qian, Yibin] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China; [Ren, Zhongzhou] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; [Ren, Zhongzhou] Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Dong, Tiekuang] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, 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
资助者: 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]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000314876700005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15416
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Recommended Citation:
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.
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