Chin. Phys. Lett.  2004, Vol. 21 Issue (5): 817-820    DOI:
Original Articles |
In-Medium K+ and K- Production and K- Condensation in Supernova Matter
GUO Hua1,4;ZHOU Ran1;LIU Yu-Xin1,2,4;LIU Bo3,4;LI Xi-Guo4
1Department of Technical Physics and MOE Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 2Department of Physics, Peking University, Beijing 100871 3Institute of High Energy Physics, Chinese Academy of Sciences,Beijing 100039 4Centre of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Cite this article:   
GUO Hua, ZHOU Ran, LIU Yu-Xin et al  2004 Chin. Phys. Lett. 21 817-820
Download: PDF(412KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract In-medium effects and neutrino trapping on K+ and K- production and K- condensation in supernova matter are investigated in a chiral hadronic model. Our results show that neutrino trapping shifts the critical density for K- condensation to higher density, the Q values for K+ and K- production are not sensitive to neutrino trapping, in-medium effects decrease the Q values for NN → NNK+K- and ΛN → NNK- and increase those for NN → NΛK+, K-p → Λπ0 and K-n → Λπ- as the density of supernova matter increases. Moreover, it is shown that neutrino trapping decreases the maximum masses of protoneutron stars compared with the neutrino-free case.
Keywords: 26.60.+c      21.65.+f      95.30.Cq      21.30.Fe     
Published: 01 May 2004
PACS:  26.60.+c  
  21.65.+f  
  95.30.Cq (Elementary particle processes)  
  21.30.Fe (Forces in hadronic systems and effective interactions)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I5/0817
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
GUO Hua
ZHOU Ran
LIU Yu-Xin
LIU Bo
LI Xi-Guo
Related articles from Frontiers Journals
[1] LI Zeng-Hua, ZUO Wei. Symmetry Potential and Effective Mass with Consistent Three-Body Force[J]. Chin. Phys. Lett., 2012, 29(6): 817-820
[2] XU Yan**,LIU Guang-Zhou,WANG Hong-Yan,DING Wen-Bo,ZHAO En-Guang. Influence of σ* and φ Mesons on Λ Hyperon 1S0 Superfluidity in Neutron Star Matter[J]. Chin. Phys. Lett., 2012, 29(5): 817-820
[3] GAN Sheng-Xin,ZUO Wei**,U. Lombardo. Nucleon Effective Mass in Asymmetric Nuclear Matter within Extended Brueckner Approach[J]. Chin. Phys. Lett., 2012, 29(4): 817-820
[4] LI Zeng-Hua, **, ZHANG Da-Peng, SCHULZE Hans-Josef, ZUO Wei. Second-Order Contribution of the Incompressibility in Asymmetric Nuclear Matter[J]. Chin. Phys. Lett., 2012, 29(1): 817-820
[5] LI Zeng-Hua, **, ZUO Wei, GUO Wen-Jun. Single-Particle Properties of Isospin Asymmetric Nuclear Matter[J]. Chin. Phys. Lett., 2012, 29(1): 817-820
[6] SONG Chun-Yan, YAO Jiang-Ming, MENG Jie, ** . Tensor Coupling Effects on Spin Symmetry in the Anti-Lambda Spectrum of Hypernuclei[J]. Chin. Phys. Lett., 2011, 28(9): 817-820
[7] XING Yong-Zhong, **, ZHU Yu-Lan, WANG Yan-Yan, ZHENG Yu-Ming, . Collective Flow of Λ Hyperons within Covariant Kaon Dynamics[J]. Chin. Phys. Lett., 2011, 28(9): 817-820
[8] YU Zi**, DING Wen-Bo, BAO Tmurbagan, LIU Ning-Ning . PSR J1614-2230 May Include Hyperons[J]. Chin. Phys. Lett., 2011, 28(8): 817-820
[9] XU Yan, LIU Guang-Zhou**, WU Yao-Rui, ZHU Ming-Feng, YU Zi, WANG Hong-Yan, ZHAO En-Guang . Direct Urca Processes with Hyperons in Cooling Neutron Stars[J]. Chin. Phys. Lett., 2011, 28(7): 817-820
[10] DING Wen-Bo**, YU Zi, LIU Yu-Hui . Cooling of Hyperonic Neutron Stars with Antikaons[J]. Chin. Phys. Lett., 2011, 28(7): 817-820
[11] WANG Yan-Zhao, GU Jian-Zhong, **, ZHANG Xi-Zhen, DONG Jian-Min, . Tensor Effect on Bubble Nuclei[J]. Chin. Phys. Lett., 2011, 28(10): 817-820
[12] PI Chun-Mei, YANG Shu-Hua**, ZHENG Xiao-Ping . Extension of Radiative Viscosity to Superfluid Matter[J]. Chin. Phys. Lett., 2011, 28(10): 817-820
[13] JIA Yi-Jian, ZHANG Ying-Xun, LI Zhu-Xia, LU Xiao-Hua, LIU Fu-Hu. The influence of Isospin Dependence of In-Medium NN Cross Sections on the Ratio of Emitted Neutrons to Protons in HICs[J]. Chin. Phys. Lett., 2009, 26(7): 817-820
[14] OU Li, LI Zhu-Xia, WU Xi-Zhen, SUN Wei-Li. Disentangling the Effects of Thickness of the Neutron Skin and Symmetry Potential in Nucleon Induced Reactions on Sn Isotopes[J]. Chin. Phys. Lett., 2009, 26(5): 817-820
[15] TIAN Yuan, MA Zhong-Yu, Ring Peter. Relativistic Quasiparticle Random Phase Approximation with a Separable Pairing Force[J]. Chin. Phys. Lett., 2009, 26(5): 817-820
Viewed
Full text


Abstract