(K)over-bar Condensation in Neutron Star Matter with Delta Quartet

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	(K)over-bar Condensation in Neutron Star Matter with Delta Quartet
	Ding Wen-Bo; Liu Guang-Zhou; Zhu Ming-Feng; Yu Zi; Xu Yan; Zhao En-Guang; Ding, WB , Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2010
卷号	54 期号:3 页码:500-508
关键词	Heavy-ion Collisions Antikaon Condensation Kaon Hypernuclei Mass
ISSN号	0253-6102
英文摘要	In the framework of relativistic mean field theory, the condensations of K(-) and (K) over bar (0) in neutron star matter including baryon octet and Delta quartet are studied. We find that in this case K(-) and (K) over bar (0) condensations can occur at relative shallow optical potential depth of (K) over bar from -80 MeV to - 160 MeV. Both K(-) and (K) over bar (0) condensations favor the appearances of Delta resonances. With (K) over bar condensations all the Delta quartet can appear well inside the maximum mass stars. The appearances of Delta resonances change the composition and distribution of particles at high densities. The populations of Delta resonances can enhance K(-) condensation .It is found that in the core of massive neutron stars, neutron star matter includes rich particle species, such as antikaons, baryon octet, and Delta quartet. In the presence of Delta resonances and (K) over bar condensation, the EOS becomes softer and results in smaller maximum mass stars. Furthermore the impact of antikaon condensations, hyperons, and Delta resonances on direct Urca process with nucleons is also discussed briefly.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000281892300025
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5054]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Ding, WB , Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China
推荐引用方式 GB/T 7714	Ding Wen-Bo,Liu Guang-Zhou,Zhu Ming-Feng,et al. (K)over-bar Condensation in Neutron Star Matter with Delta Quartet[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2010,54(3):500-508.
APA	Ding Wen-Bo.,Liu Guang-Zhou.,Zhu Ming-Feng.,Yu Zi.,Xu Yan.,...&Ding, WB , Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China.(2010).(K)over-bar Condensation in Neutron Star Matter with Delta Quartet.COMMUNICATIONS IN THEORETICAL PHYSICS,54(3),500-508.
MLA	Ding Wen-Bo,et al."(K)over-bar Condensation in Neutron Star Matter with Delta Quartet".COMMUNICATIONS IN THEORETICAL PHYSICS 54.3(2010):500-508.