Kaon condensation and equation of state in the relativistic mean-field theory
Kaon condensation and equation of state in the relativistic mean-field theory
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相对论平均场理论中的 Kaon 凝聚和状态方程
DOI：
10.1016/0370-2693(94)91436-2
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发表时间：
1994
影响因子：
4.4
通讯作者：
T. Tatsumi
中科院分区：
文献类型：
--
作者：
T. Maruyama;H. Fujii;T. Muto;T. Tatsumi
在相对论性形式下研究了K介子凝聚相的状态方程。我们发现了一种自抑制机制，即K介子凝聚体通过相对论效应降低了核子的有效质量，从而降低了高密度区核子与K介子之间的相互作用能，抑制了凝聚体的发展。为了更深入地了解这一功能，我们扩展了手征对称性的方法，并将相对论平均场理论。在这种扩展处理中，σ平均场增强了自抑制机制。简要讨论了K介子凝聚中子星的一些特征。
The equation of state of the kaon-condensed phase is studied within a relativistic formalism. We find a self-suppression mechanism such that the kaon condensate decreases the nucleon effective mass through the relativistic effect, which reduces the interaction energy between the nucleon and kaon in a high density region, suppressing the development of the condensate. To get more insight into this feature we extend a chiral symmetry approach and incorporate the relativistic mean field theory. In this extended treatment the σ mean-field enhances the self-suppression mechanism. Some features of kaon-condensed neutron stars are briefly discussed.