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原子核放射性对核对称能的约束(英文)
引用本文:许昌.原子核放射性对核对称能的约束(英文)[J].原子核物理评论,2017,34(1):46-50.
作者姓名:许昌
作者单位:南京大学物理系, 南京 210093
基金项目:国家自然科学基金资助项目(11575082,11235001,11175085)
摘    要:核对称能的密度依赖性对于原子核物理和天体物理中的许多问题很重要。基于密度依赖的结团模型,奇特的结团放射性被用来约束核对称能及其斜率的大小。在密度依赖的结团模型中,清楚地给出了结团放射性子核208Pb的中子皮大小与对称能的斜率参数Lρ0) 之间的关联。发现从M3Y核子-核子相互作用得到的结团-208Pb 同位旋矢量势对于对称能的斜率参数Lρ0) 非常重要。基于结团放射性实验数据和新的208Pb 的中子皮大小实验数据,成功得到对称能的斜率参数Lρ0) 的大小。也讨论了利用质子放射性数据提取的斜率参数Lρ0)。The density-dependence of symmetry energy is of particular importance to many problems in nuclear physics and astrophysics. Exotic cluster radioactivity is proposed to constrain the density slope of symmetry energy L(ρ0) by using the density-dependent cluster model (DDCM) where the cluster radioactivity serves as a link between the neutron skin thickness of 208Pb and the density slope L(ρ0). The isovector part of cluster-208Pb potential constructed from the M3Y nucleon-nucleon interaction is found to be very important in determining the density slope parameter L(ρ0). The correlation between the neutron skin thickness of 208Pb and the density slope parameter are obtained from cluster radioactivities around 208Pb with measured data. The constraint of L(ρ0) from proton radioactivity is also discussed.

关 键 词:对称能    结团放射性    质子放射性
收稿时间:2016-09-10

Nuclear Symmetry Energy Constrained by Nuclear Radioactivities
XU Chang.Nuclear Symmetry Energy Constrained by Nuclear Radioactivities[J].Nuclear Physics Review,2017,34(1):46-50.
Authors:XU Chang
Institution:School of Physics, Nanjing University, Nanjing 210093, China
Abstract:The density-dependence of symmetry energy is of particular importance to many problems in nuclear physics and astrophysics. Exotic cluster radioactivity is proposed to constrain the density slope of symmetry energy L(ρ0) by using the density-dependent cluster model (DDCM) where the cluster radioactivity serves as a link between the neutron skin thickness of 208Pb and the density slope L(ρ0). The isovector part of cluster-208Pb potential constructed from the M3Y nucleon-nucleon interaction is found to be very important in determining the density slope parameter L(ρ0). The correlation between the neutron skin thickness of 208Pb and the density slope parameter are obtained from cluster radioactivities around 208Pb with measured data. The constraint of L(ρ0) from proton radioactivity is also discussed.
Keywords:symmetry energy  cluster radioactivity  proton radioactivity
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