Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model

doi:http://dx.doi.org/10.1103/PhysRevC.93.015803

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Nonrelativistic nucleon effective masses in nuclear matter: Brueckner-Hartree-Fock model versus relativistic Hartree-Fock model
	Li, A ; Hu, JN ; Shang, XL ; Zuo, W
刊名	PHYSICAL REVIEW C
	2016
卷号	93 期号:1 页码:15803
关键词	NEUTRON-RICH NUCLEI NORMAL DENSITY 3-BODY FORCE MEAN-FIELD DEPENDENCE
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
资助机构	National Natural Science Foundation of China [11347151, 11435014, 11405090, 11505241, U1431107] ; Major State Basic Research Developing Program of China [2013CB834405] ; Knowledge Innovation Projects of the Chinese Academy of Sciences [KJCX2-EW-N01]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23236]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Hu, J. N.] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 2.[Li, A.] Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China 3.[Li, A.] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China 4.[Li, A. 5.Shang, X. L. 6.Zuo, W.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.Zuo, W.] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 8.[Shang, X. L.
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.(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.