Single particle properties in asymmetric nuclear matter and TBF rearrangement effect

摘要：

We have developed the formula and the numerical code for calculating the rearrangement contribution to the single particle (s.p.) properties in asymmetric nuclear matter induced by three-body forces within the framework of the Brueckner theory extended to include a microscopic three-body force (TBF).We have investigated systematically the TBF-induced rearrangement effect on the s.p.properties and their isospin-behavior in neutron-rich nuclear medium.It is shown that the TBF induces a repulsive rearrangement contribution to the s.p.potential in nuclear medium.The repulsion of the TBF rearrangement contribution increases rapidly as a function of density and nucleon momentum.It reduces largely the attraction of the BHF s.p.potential and enhances strongly the momentum dependence of the s.p.potential at large densities and high-momenta.The TBF rearrangement effect on symmetry potential is to enhances its repulsion (attraction)on neutrons (protons) in dense asymmetric nuclear matter.

关键词： asymmetric nuclear matter single particle properties Brueckner theory three-body force rearrangement effect

作者: ZUO Wei(左维)

作者单位: Institute of Modern Physics,Chinese Academy of Science,Lanzhou 730000,China

会议类型: 国际会议

会议名称: The 13th National Nuclear Physics Conference of China(第十三届全国核物理大会暨第八届会员代表大会)

会议地点: 兰州

会议语种:英文

页码: 64-69

在线出版日期: 2007-08-22（万方平台首次上网日期，不代表论文的发表时间）