In-medium kaon and antikaon production and antikaon condensation in neutron star matter
Gu, JF; Guo, H; Zhou, R; Liu, B; Li, XG; Liu, YX; 刘波(理)
刊名ASTROPHYSICAL JOURNAL
2005
卷号622期号:1页码:549-555
关键词elementary particles nuclear reactions, nucleosynthesis, abundances supernovae : general
学科分类Astronomy & Astrophysics
DOI10.1086/428029
通讯作者Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China ; Peking Univ, MOE Lab Heavy Ion Phys, Beijing 100871, Peoples R China ; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China ; Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
英文摘要Kaon and antikaon production and antikaon condensation in neutron star matter are investigated in a chiral hadronic model proposed by Furnstahl, Tang, K Serot (FST model). Results calculated in the FST model are compared with those in the nonlinear Walecka model. Antikaon condensation decreases the maximum masses of neutron stars with a composition of (n, p, e, mu, K) compared with those of (n, p, e, mu), without antikaon condensation. The FST model predicts that Sigma(+) and Xi(0) do not occur in neutron stars. Moreover, it has been shown that antikaon condensation in the FST model does not exist in neutron star matter with compositions of both (n, p, e, mu, K, H) if hyperons are considered and (n, p, e, mu, nu(e), K, H) if hyperons plus neutrino tripping are considered. The Q-values for K+ and K- production are not sensitive to antikaon condensation and the presence of hyperons. In-medium effects decrease the Q-values for NN -> NNK+K- and Lambda N -> NNK- and increase those for NN -> N Lambda K+, K- p -> Lambda pi(0), and K- n -> Lambda pi(-) as the density of neutron star matter increases.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS记录号WOS:000227740900045
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237905
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Gu, JF,Guo, H,Zhou, R,et al. In-medium kaon and antikaon production and antikaon condensation in neutron star matter[J]. ASTROPHYSICAL JOURNAL,2005,622(1):549-555.
APA Gu, JF.,Guo, H.,Zhou, R.,Liu, B.,Li, XG.,...&刘波.(2005).In-medium kaon and antikaon production and antikaon condensation in neutron star matter.ASTROPHYSICAL JOURNAL,622(1),549-555.
MLA Gu, JF,et al."In-medium kaon and antikaon production and antikaon condensation in neutron star matter".ASTROPHYSICAL JOURNAL 622.1(2005):549-555.
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