| 中子皮厚度与中子星半径 |
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| 引用本文： | 李俊,沈刚,G.C.Hillhouse,孟杰. 中子皮厚度与中子星半径[J]. 原子核物理评论, 2005, 22(1): 27-28. DOI: 10.11804/NuclPhysRev.22.01.027 |
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| 作者姓名： | 李俊 沈刚 G.C.Hillhouse 孟杰 |
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| 作者单位： | 1兰州重粒子加速器国家实验室原子核理论中心, 甘肃 兰州730000;2 北京大学物理学院, 北京 100871;3 Department of Physics, University of Stellenbosch, Stellenbosch, South Africa;4 中国科学院理论物理研究所, 北京 100080 |
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| 基金项目： | 国家重点基础研究发展规划基金资助项目 (G2000077407 )，国家自然科学基金资助项目 ( 10025522，10221003，10047001)~~ |
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| 摘 要： | 在相对论平均场理论框架下在拉氏量密度中引入同位旋相关的高阶修正项, 研究了中子皮厚度和中子星半径的关系. 利用有效相互作用PK1得到208Pb的中子皮厚度最小可达0.17 fm, 这与近期Skyrme HF模型得到的结果一致. 随着同位旋相关的高阶修正项系数的变化, 208Pb的中子皮厚度和中子星半径的变化趋势相同. By adding isospin dependent high order correction ferms to existing relativistic mean field models．tlle thickness of neuron．skin in 208Pb and the radius of 1.4 solar mass neutron star are studied．The effecfive interaction PK1 would lead the thickness of neutron-skin to a minimum of 0.17 fm which agrees with the analysis from Skyrme‘HF models． The coupling constants of the isospin dependent high order corection terms tend to change，the thickness of neutron-skin and the radius of neutron stars chan ge simultaneously.
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| 关 键 词： | 相对论平均场 同位旋相关高阶修正项 中子皮 中子星 |
| 文章编号： | 1007-4627(2005)01-0027-03 |
| 收稿时间： | 1900-01-01 |
Thickness of Neutron-skin in 208Pb and Radius of a 1.4 Solar Mass Neutron Star |
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| LI Jun,SHEN Gang,G.C.Hillhouse,MENG Jie. Thickness of Neutron-skin in 208Pb and Radius of a 1.4 Solar Mass Neutron Star[J]. Nuclear Physics Review, 2005, 22(1): 27-28. DOI: 10.11804/NuclPhysRev.22.01.027 |
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| Authors: | LI Jun SHEN Gang G.C.Hillhouse MENG Jie |
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| Affiliation: | (1 Center of Theortical Nuclear Physics,National Lboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China;2 School of Physics,Peking University,Beifing 100871,China;3 Department ofPhysics,University ofSteUenbosch,Stellenbosch,South Africa;4 Institute of Theoretical Physics,Chinese Academy ofSciences,Beijing 100080,China |
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| Abstract: | By adding isospin dependent high order correction terms to existing relativistic mean field models, the thickness of neutron-skin in ~(208)Pb and the radius of 1.4 solar mass neutron star are studied. The effective interaction PK1 would lead the thickness of neutron-skin to a minimum of 0.17 fm which agrees with the analysis from Skyrme-HF models. The coupling constants of the isospin dependent high order correction terms tend to change, the thickness of neutron-skin and the radius of neutron stars change simultaneously. |
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| Keywords: | relativistic mean field isospin dependent high order correction neutron-skin neutron star |
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