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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
2010
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号54期号:3页码:500-508
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.
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
关键词Heavy-ion Collisions Antikaon Condensation Kaon Hypernuclei Mass
学科领域Physics
资助者National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054]
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收录类别SCI
资助者National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054] ; National Natural Science Foundation of China[10275029, 10675054]
WOS记录号WOS:000281892300025
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5054
专题理论物理所1978-2010年知识产出
通讯作者Ding, WB , Bohai Univ, Dept Phys, Jinzhou 121000, Peoples R China
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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.
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