Antikaon condensation and in-medium kaon and antikaon production in protoneutron stars
文献类型：期刊论文
| 作者 | Gu Jian-Fa; Guo Hua; Li Xi-Guo; Liu Yu-Xin; Xu Fu-Rong |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2007 |
| 卷号 | 47期号:1页码:111-118 |
| 关键词 | protoneutron stars antikaon condensation neutrino trapping |
| ISSN号 | 0253-6102 |
| 英文摘要 | Antikaon condensation and kaon and antikaon production in protoneutron stars are investigated in a chiral hadronic model (also referred to as the FST model in this paper). The effects of neutrino trapping on protoneutron stars are analyzed systematically. It is shown that neutrino trapping makes the critical density of K- condensation delay to higher density and (K) over bar (0) condensation not occur. The equation of state (EOS) of (proto)neutron star matter with neutrino trapping is stiffer than that without neutrino trapping, As a result, the maximum masses of (proto)neutron stars with neutrino trapping are larger than those without neutrino trapping. If hyperons are taken into account, antikaon does not form a condensate in (Proto)neutron stars. Meanwhile, the corresponding EOS becomes much softer, and the maximum masses of (proto)neutron stars are smaller than those without hyprons. Finally, our results illustrate that the Q values for K+ and K- production in (proto)neutron stars are not sensitive to neutrino trapping and inclusion of hyperons. |
| WOS关键词 | NONLINEAR SIGMA-TERM ; MEAN-FIELD THEORY ; NEUTRON-STARS ; OMEGA-TERM ; NUCLEI ; MATTER |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000243764900022 |
| 出版者 | INTERNATIONAL ACADEMIC PUBLISHERS LIMITED |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/6053]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Gu Jian-Fa |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 3.Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China 4.Peking Univ, MOE Lab Heavy Ion Phys, Beijing 100871, Peoples R China 5.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu Jian-Fa,Guo Hua,Li Xi-Guo,et al. Antikaon condensation and in-medium kaon and antikaon production in protoneutron stars[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2007,47(1):111-118. |
| APA | Gu Jian-Fa,Guo Hua,Li Xi-Guo,Liu Yu-Xin,&Xu Fu-Rong.(2007).Antikaon condensation and in-medium kaon and antikaon production in protoneutron stars.COMMUNICATIONS IN THEORETICAL PHYSICS,47(1),111-118. |
| MLA | Gu Jian-Fa,et al."Antikaon condensation and in-medium kaon and antikaon production in protoneutron stars".COMMUNICATIONS IN THEORETICAL PHYSICS 47.1(2007):111-118. |
入库方式： OAI收割
来源：近代物理研究所
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