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ITP OpenIR  > 理论物理所2016年知识产出  > 期刊论文
题名: Further study of alpha-decay in heavy isotopic chains considering the isospin effect
作者: Qian, YB ;  Ren, ZZ
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 2016
卷号: 43, 期号:6, 页码:65102
关键词: alpha-decay ;  isospin effect ;  cluster model
学科分类: Physics
DOI: http://dx.doi.org/10.1088/0954-3899/43/6/065102
通讯作者: Qian, YB (reprint author), Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China. ;  Qian, YB ;  Ren, ZZ (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. ;  Qian, YB ;  Ren, ZZ (reprint author), Nanjing Univ, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China. ;  Ren, ZZ (reprint author), Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China. ;  Ren, ZZ (reprint author), Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We have enhanced the deformed density-dependent cluster model to improve the quantitative description of alpha-decay in heavy even-even nuclei with 84 <= Z <= 92. To preliminarily introduce the isospin effect into alpha-decay, the neutron excess term is added in the establishment of the crucial alpha-core potential. The proton and neutron density distributions are respectively considered in different parameterized formulas by combining them with available experimental data of both the charge radius and the neutron skin thickness. The calculated alpha-decay half-lives are found to be in somewhat better agreement with the experimental data as compared with our previous results. Strikingly, it is noted that the relatively large deviation between theory and experiment, along the tail of the isotopic chain, is obviously reduced and smoother. This may indicate the necessity of considering the isospin effect in alpha-decay, especially for extremely neutron-rich nuclei, which appears to be essential for the extended study of heaviest nuclei as well.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: EVEN-EVEN NUCLEI ;  CHARGE RADII ;  POTENTIALS ;  SCATTERING ;  PARTICLE ;  SHELL ;  MODEL
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11375086, 11535004, 11120101005] ;  973 National Major State Basic Research and Development Program of China [2013CB834400] ;  Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD) ;  Natural Science Youth Fund of Jiangsu Province [BK20150762] ;  Fundamental Research Funds for the Central Universities [30916011339]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21638
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Qian, YB,Ren, ZZ. Further study of alpha-decay in heavy isotopic chains considering the isospin effect[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2016,43(6):65102.
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