相对论平均场理论中各种有效相互作用对中子星性质的影响

相对论平均场理论中各种有效相互作用对中子星性质的影响 Influence of Effective Interactions in the Relativistic Mean Field Theory on Properties of Neutron Star 李俊 LI Jun~1 1 2 3 4 5 first-author 班淑芳 BAN Shu-fang~2 1 2 3 4 5 贾焕玉 JIA Huan-yu~2 1 2 3 4 5 孟杰 MENG Jie~2 1 2 3 4 5 桑建平 SANG Jian-ping~1 1 2 3 4 5 武汉大学物理科学与技术学院 武汉大学物理科学与技术学院 School of Physics and Technology, Wuhan University School of Physics and Technology, Wuhan University 北京大学技术物理系 北京大学技术物理系 Department of Technical Physics, Peking University Department of Technical Physics, Peking University 武汉大学物理科学与技术学院,湖北,武汉,430072 武汉大学物理科学与技术学院,湖北,武汉,430072 College of Science, Southwest Jiaotong University, Chengdou College of Science, Southwest Jiaotong University, Chengdou ,成都,610031 ,成都,610031 西南交通大学现代物理研究所 西南交通大学现代物理研究所 基于相对论平均场理论,研究了各种相互作用参数组（NL1、NL3、NLSH、TM1和GL 97）对中子星物质的性质和中子星整体结构的影响.发现参数组NL1、NL3和NLSH所给出的中子星内部的介子场强度、物质的组成比例、物态方程和中子星的整体特点基本相同,但与TM1和GL 97之间有较大的差别.相对于其他参数组,GL 97给出的介子场强度最弱,中子星的相对数密度最大,物态方程也最软,同时采用GL 97参数组计算的中子星的最大质量也最小. The influence of effective interactions including NL1,NL3,NLSH,TM1 and GL-97 on the properties of neutron star matter and its global structure is studied in the framework of relativistic mean field theory. The results on meson field potential, composition of particles, equation of state and global feature of neutron star between the effective interactions NL1,NL3 and NLSH have short odds,but the results of TM1 and GL-97 have obvious difference with the former three effective interactions. Opposite to other effective interactions, Gl-97 has the weakest meson field potential, the largest neutron population, the softest equation of state and the minimum of maximum mass. 相对论平均场理论 相互作用参数组 中子星 物态方程 最大质量 relativistic mean field interaction coupling neutron star equation of state maximum mass O412.1 国家自然科学基金（10025522,19935030,10047001）;国家重点基础研究发展规划（G2000077407）资助项目 2004-01-01 2021-04-01 1