Neutron stars with isovector scalar correlations

doi:10.1140/epja/i2005-10095-1

	Neutron stars with isovector scalar correlations
	Liu, B ; Guo, H ; Di Toro, M ; Greco, V
刊名	EUROPEAN PHYSICAL JOURNAL A
	2005-08-01
卷号	25 页码:293-298
ISSN号	1434-6001
DOI	10.1140/epja/i2005-10095-1
英文摘要	Neutron stars with the isovector scalar delta-field are studied in the framework of the relativistic mean-field (RMF) approach in a pure-nucleon-plus-lepton scheme. The delta-field leads to a larger repulsion in dense neutron-rich matter and to a definite splitting of proton and neutron effective masses. Both features are influencing tire stability conditions of the neutron stars. Two parametrizations for the effective nonlinear Lagrangian density are used to calculate the nuclear equation of state (EOS) and the neutron star properties, and compared to correlated Dirac-Brueckner results. We conclude that in order to reproduce reasonable nuclear structure and neutron star properties within a RMF approach, a density dependence of the coupling constants is required.
WOS关键词	HEAVY-ION COLLISIONS ; MEAN-FIELD THEORY ; NUCLEAR-MATTER ; SYMMETRY ENERGY ; DENSITY ; MESON ; FLOW
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000232779500017
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/25127]
专题	中国科学院近代物理研究所
通讯作者	Liu, B
作者单位	1.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China 3.Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China 4.Lab Nazl Sud, I-95123 Catania, Italy 5.Univ Catania, I-95124 Catania, Italy 6.Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA
推荐引用方式 GB/T 7714	Liu, B,Guo, H,Di Toro, M,et al. Neutron stars with isovector scalar correlations[J]. EUROPEAN PHYSICAL JOURNAL A,2005,25:293-298.
APA	Liu, B,Guo, H,Di Toro, M,&Greco, V.(2005).Neutron stars with isovector scalar correlations.EUROPEAN PHYSICAL JOURNAL A,25,293-298.
MLA	Liu, B,et al."Neutron stars with isovector scalar correlations".EUROPEAN PHYSICAL JOURNAL A 25(2005):293-298.