Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model | |
Li, A.1,2,3; Hu, J. N.4; Shang, X. L.3,5; Zuo, W.3,5 | |
刊名 | PHYSICAL REVIEW C |
2016-01-28 | |
卷号 | 93页码:6 |
ISSN号 | 2469-9985 |
DOI | 10.1103/PhysRevC.93.015803 |
英文摘要 | The density and isospin dependencies of nonrelativistic nucleon effective mass (m(N)*) are studied, which is a measure of the nonlocality of the single particle (s.p.) potential. It can be decoupled as the so-called k mass (m(k)*, i.e., the nonlocality in space) and E mass (m(E)*, i.e., the nonlocality in time). Both k mass andE mass are determined and compared by using the latest versions of the nonrelativistic Brueckner-Hartree-Fock (BHF) model and the relativistic Hartree-Fock (RHF) model. The latter is achieved based on the corresponding Schrodinger equivalent s.p. potential in a relativistic framework. We demonstrate the origins of different effective masses and discuss also their neutron-proton splitting in the asymmetric matter in different models. We find that the neutron-proton splittings of both the k mass and the E mass have the same asymmetry dependencies at the densities considered; namely, m(k, n)* > m(k, p)* and m(E, p)* > m(E, n)*. However, the resulting splittings of nucleon effective masses could have different asymmetry dependencies in these two models because they could be dominated either by the k mass (then we have m(n)* > m(p)* in the BHF model), or by the E mass (then we have m(p)* > m(n)* in the RHF model). The isospin splitting in the BHF model is more consistent with the recent analysis from the nucleon-nucleus-scattering data, while the small E mass m(E)* in the RHF case as a result of the missing ladder summation finally leads to an opposite splitting behavior. |
资助项目 | National Natural Science Foundation of China[11347151] ; National Natural Science Foundation of China[11435014] ; National Natural Science Foundation of China[11405090] ; National Natural Science Foundation of China[11505241] ; National Natural Science Foundation of China[U1431107] ; Major State Basic Research Developing Program of China[2013CB834405] ; Knowledge Innovation Projects of the Chinese Academy of Sciences[KJCX2-EW-N01] |
WOS关键词 | NEUTRON-RICH NUCLEI ; NORMAL DENSITY ; 3-BODY FORCE ; MEAN-FIELD ; DEPENDENCE |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | AMER PHYSICAL SOC |
WOS记录号 | WOS:000369322800003 |
资助机构 | National Natural Science Foundation of China ; Major State Basic Research Developing Program of China ; Knowledge Innovation Projects of the Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/41670] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Li, A.; Hu, J. N.; Shang, X. L.; Zuo, W. |
作者单位 | 1.Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China 2.Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Li, A.,Hu, J. N.,Shang, X. L.,et al. Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model[J]. PHYSICAL REVIEW C,2016,93:6. |
APA | Li, A.,Hu, J. N.,Shang, X. L.,&Zuo, W..(2016).Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model.PHYSICAL REVIEW C,93,6. |
MLA | Li, A.,et al."Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model".PHYSICAL REVIEW C 93(2016):6. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论