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Effects of differences between neutron and proton density distributions on alpha-decay half-lives

文献类型：期刊论文

作者Ni, Dongdong1,2; Ren, Zhongzhou3,4
刊名PHYSICAL REVIEW C
出版日期2015-11-25
卷号92页码:8
ISSN号0556-2813
DOI10.1103/PhysRevC.92.054322
英文摘要The neutron skin of heavy nuclei is one of the hot topics in contemporary nuclear physics. In this article, effects of differences between neutron and proton density distributions on alpha decay are investigated. alpha-decay calculations are performed within the generalized density-dependent cluster model, where the alpha-core potential is determined in the double-folding model using the neutron and proton density distributions of daughter nuclei. The proton and neutron density distributions, assumed to be of two-parameter Fermi form, are constrained by the experimental nuclear charge radii as well as the neutron skin thickness of heavy nuclei. The resulting distribution of daughter nuclei results in an improved alpha-core potential which is important for alpha-decay calculations. It is found that the neutron skin thickness plays an important role in reducing the calculated alpha-decay half-lives, implying a smaller alpha preformation factor. The calculations with neutron skin thickness show good agreement with the available experimental data for even-even nuclei including the known heaviest nuclei.
WOS关键词CLUSTER-RADIOACTIVITY ; CHARGE RADII ; NUCLEI ; EMISSION ; FISSION ; STATE ; MODEL
资助项目Science and Technology Development Fund of Macau[020/2014/A1] ; Science and Technology Development Fund of Macau[039/2013/A2] ; National Natural Science Foundation of China[11535004] ; National Natural Science Foundation of China[11035001] ; National Natural Science Foundation of China[11165006] ; National Natural Science Foundation of China[10735010] ; National Natural Science Foundation of China[10975072] ; 973 National Major State Basic Research and Development of China[2013CB834400] ; 973 National Major State Basic Research and Development of China[2010CB327803] ; Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD)
WOS研究方向Physics
语种英语
WOS记录号WOS:000365510400003
出版者AMER PHYSICAL SOC
资助机构Science and Technology Development Fund of Macau ; National Natural Science Foundation of China ; 973 National Major State Basic Research and Development of China ; Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD)
源URL[http://119.78.100.186/handle/113462/41184]  
专题中国科学院近代物理研究所
通讯作者Ni, Dongdong
作者单位1.Macao Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China
2.Nanjing Univ, Inst Acoust, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
3.Nanjing Univ, Inst Acoust, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China
4.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Ni, Dongdong,Ren, Zhongzhou. Effects of differences between neutron and proton density distributions on alpha-decay half-lives[J]. PHYSICAL REVIEW C,2015,92:8.
APA Ni, Dongdong,&Ren, Zhongzhou.(2015).Effects of differences between neutron and proton density distributions on alpha-decay half-lives.PHYSICAL REVIEW C,92,8.
MLA Ni, Dongdong,et al."Effects of differences between neutron and proton density distributions on alpha-decay half-lives".PHYSICAL REVIEW C 92(2015):8.

入库方式： OAI收割

来源：近代物理研究所

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