Hyperon coupling dependence of hadron matter properties in relativistic mean field model

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 近代物理研究所知识存储（2010之前）

	Hyperon coupling dependence of hadron matter properties in relativistic mean field model
	Mi, Ai-Jun ; Zuo, Wei ; Li, Ang
刊名	CHINESE PHYSICS
	2007-11-01
卷号	16 期号:11 页码:3290-3296
关键词	hyperon coupling strange meson field equations of state
ISSN号	1009-1963
英文摘要	The properties of hadronic matter at beta equilibrium in a wide range of densities are described by appropriate equations of state in the framework of the relativistic mean field model. Strange meson fields, namely the scalar meson field sigma(975) and the vector meson field sigma(1020), are included in the present work. We discuss and compare the results of the equation of state, nucleon effective mass, and strangeness fraction obtained by adopting the TM1, TMA, and GL parameter sets for nuclear sector and three different choices for the hyperon couplings. We find that the parameter set TM1 favours the onset of hyperons most, while at high densities the GL parameter set leads to the most hyperon-rich matter. For a certain parameter set (e.g. TM1), the most hyperon-rich matter is obtained for the hyperon potential model. The influence of the hyperon couplings on the effective mass of nucleon, is much weaker than that on the nucleon parameter set. The nonstrange mesons dominate essentially the global properties of dense hyperon matter. The hyperon potential model predicts the lowest value of the neutron star maximum mass of about 1.45 M-sun to be 0.4-0.5 M-sun lower than the prediction by using the other choices for hyperon couplings.
WOS关键词	NEUTRON-STARS ; QUANTUM HADRODYNAMICS ; NUCLEI ; HYPERNUCLEI
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000251053800024
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/5857]
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	Mi, Ai-Jun
作者单位	1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Mi, Ai-Jun,Zuo, Wei,Li, Ang. Hyperon coupling dependence of hadron matter properties in relativistic mean field model[J]. CHINESE PHYSICS,2007,16(11):3290-3296.
APA	Mi, Ai-Jun,Zuo, Wei,&Li, Ang.(2007).Hyperon coupling dependence of hadron matter properties in relativistic mean field model.CHINESE PHYSICS,16(11),3290-3296.
MLA	Mi, Ai-Jun,et al."Hyperon coupling dependence of hadron matter properties in relativistic mean field model".CHINESE PHYSICS 16.11(2007):3290-3296.