Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model
文献类型：期刊论文
| 作者 | Li, A; Hu, JN; Shang, XL; Zuo, W; Li, A (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China.; Li, A (reprint author), Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China.; Zuo, W (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Hu, JN (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.; Zuo, W (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China. |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2016 |
| 卷号 | 93期号:1页码:15803 |
| DOI | http://dx.doi.org/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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21791]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, A; Shang, XL; Li, A (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China.; Li, A (reprint author), Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China.; Zuo, W (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Hu, JN (reprint author), Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China.; Zuo, W (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, A,Hu, JN,Shang, XL,et al. Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model[J]. PHYSICAL REVIEW C,2016,93(1):15803. |
| APA | Li, A.,Hu, JN.,Shang, XL.,Zuo, W.,Li, A .,...&Zuo, W .(2016).Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model.PHYSICAL REVIEW C,93(1),15803. |
| MLA | Li, A,et al."Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model".PHYSICAL REVIEW C 93.1(2016):15803. |
入库方式： OAI收割
来源：理论物理研究所
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