Isospin-dependence of nucleon potential and effective mass in relativistic approach

	Isospin-dependence of nucleon potential and effective mass in relativistic approach
	Ma, Zhong-Yu ; Rong, Jian
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2006-12-01
卷号	30 页码:1230-1233
关键词	Dirac Brueckner Hartree-Fock theory nucleon effective mass nucleon scattering optical potential
ISSN号	0254-3052
英文摘要	The isospin-dependence of nucleon optical potentials and the nucleon effective mass is studied in the framework of the Dirac Brueckner Hartree-Fock (DBHF) approach. A new decomposition of the Dirac structure of the nuclear self-energy in the DBHF is extended to asymmetric nuclear matter calculations. The real part of the nucleon self-energy in asymmetric nuclear matter is calculated with the G-matrix in the Hartree-Fock approach, while the imaginary part is obtained from the polarization diagram. The nucleon vector effective mass is derived from the Schroedinger equivalent potentials. It is found that the neutron vector effective mass is larger than that of proton in the neutron-rich nuclear matter once the energy dependence of the nucleon potentials is considered.
WOS关键词	HARTREE-FOCK APPROACH ; SELF-ENERGY ; MATTER ; MODEL ; STATE
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000242417100016
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/27021]
专题	中国科学院近代物理研究所
通讯作者	Ma, Zhong-Yu
作者单位	1.Inst Atom Energy, Beijing 102413, Peoples R China 2.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ma, Zhong-Yu,Rong, Jian. Isospin-dependence of nucleon potential and effective mass in relativistic approach[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2006,30:1230-1233.
APA	Ma, Zhong-Yu,&Rong, Jian.(2006).Isospin-dependence of nucleon potential and effective mass in relativistic approach.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,30,1230-1233.
MLA	Ma, Zhong-Yu,et al."Isospin-dependence of nucleon potential and effective mass in relativistic approach".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 30(2006):1230-1233.