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题名: (K)over-bar Condensation in Neutron Star Matter with Delta Quartet
作者: Ding Wen-Bo ;  Liu Guang-Zhou ;  Zhu Ming-Feng ;  Yu Zi ;  Xu Yan ;  Zhao En-Guang
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2010
卷号: 54, 期号:3, 页码:500-508
关键词: HEAVY-ION COLLISIONS ;  ANTIKAON CONDENSATION ;  KAON ;  HYPERNUCLEI ;  MASS
学科分类: Physics
通讯作者: Ding, WB , Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China
部门归属: [Ding, WB] Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China; [Ding, WB; Liu, GZ; Zhu, MF; Yu, Z; Xu, Y] Jilin Univ, Ctr Theoret Phys, Changchun 130023, Peoples R China; [Zhao, EG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
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.
资助者: National Natural Science Foundation of China[10275029, 10675054]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000281892300025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5054
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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.
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