Probing Nuclear Symmetry Energy with Giant Dipole Resonances in Finite Nuclei

摘要：

The relationship between the centroid energies of the isovector giant dipole resonance of finite nuclei and the symmetry energy has been studied.It is found the excitation energies of the dipole resonance in finite nuclei are correlated linearly with the symmetry energy at and below the saturation density.This linear correlation leads to the symmetry energy at the saturation density at the interval 33.0 MeV ≤ S(ρ0) ≤ 37.0 MeV,and the symmetry energy at ρ=0.1 fm-3 at the interval 21.2-22.5 MeV.It is proposed that a precise measurement of the dipole mode in nuclei could set up an important constraint on the equation of state for nuclear matter.

关键词： symmetry energy dipole resonance Pygmy resonance

作者: CAO Li-gang MA Zhong-yu

作者单位: Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;Center of Theoretical N China Institute of Atomic Energy,Beijing 102413,China;Center of Theoretical Nuclear Physics,National

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Hadron and Nuclear Physics 2008 Symposium(第三届中日韩强子物理与核物理研讨会)

会议地点: 兰州

会议语种:英文

页码: 181-184

在线出版日期: 2008-06-23（万方平台首次上网日期，不代表论文的发表时间）