Properties of isospin asymmetric nuclear matter and extended Brueckner-Hartree-Fock approach (II) equation of state, symmetry energy and three-body force effects

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	Properties of isospin asymmetric nuclear matter and extended Brueckner-Hartree-Fock approach (II) equation of state, symmetry energy and three-body force effects
	Zuo, W ; Li, JQ ; Liu, JY ; Li, ZH ; Lombardo, U
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2002-12-01
卷号	26 期号:12 页码:1238-1246
关键词	microscopic thyee-body force asymmetric nuclear matter symmetry energy
ISSN号	0254-3052
英文摘要	Within the isospin dependent Brueckner-Hartree-Fock approach,the equation of state of isospin asymmetric nuclear matter and its isospin dependence have been investigated in the whole isospin range. The present work has been focused on the effects of a microscopic three-body force. on the equation of state of asymmetric nuclear matter and nuclear symmetry energy. It is shown that, even with the presence of the three-body force, the empirical parabolic law of the energy per nucleon vs isospin asymmetry is still fulfilled accurately in the whole isospin range (0 less than or equal to beta less than or equal to 1). Around the empirical saturation density rho(0) = 0.17 fm(-3), the three-body force effect on the symmetry energy is rather small and the symmetry energy at the saturation density obtained in the presence of the three-body force is 30.71MeV in good agreement with its empirical value 30 +/- 4MeV;while at high density,the three-body force provides a strong enhancement of the symmetry energy and makes the symmetry energy increase much more rapid as increasing density. A simple parametrization of the symmetry energy as a function of density is proposed.
WOS关键词	HEAVY-ION COLLISIONS ; NONLINEAR QUANTUM HADRODYNAMICS ; NEUTRON-STARS ; SELF-ENERGY ; DYNAMICS ; DEPENDENCE
WOS研究方向	Physics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000180122000007
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/1565]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者	Zuo, W
作者单位	1.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Ist Nazl Fis Nucl, LNS, I-95123 Catania, Italy
推荐引用方式 GB/T 7714	Zuo, W,Li, JQ,Liu, JY,et al. Properties of isospin asymmetric nuclear matter and extended Brueckner-Hartree-Fock approach (II) equation of state, symmetry energy and three-body force effects[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2002,26(12):1238-1246.
APA	Zuo, W,Li, JQ,Liu, JY,Li, ZH,&Lombardo, U.(2002).Properties of isospin asymmetric nuclear matter and extended Brueckner-Hartree-Fock approach (II) equation of state, symmetry energy and three-body force effects.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,26(12),1238-1246.
MLA	Zuo, W,et al."Properties of isospin asymmetric nuclear matter and extended Brueckner-Hartree-Fock approach (II) equation of state, symmetry energy and three-body force effects".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 26.12(2002):1238-1246.