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arXiv 0802.1965nucl-th
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强子状态方程对中子星中强子-夸克相变的影响

Influence of the hadronic equation of state on the hadron-quark phase transition in neutron stars

F. Yang, H. Shen

摘要:

我们研究了中子星内部的强子-夸克相变。强子物质相采用相对论平均场(RMF)理论,夸克物质相采用Nambu-Jona-Lasinio(NJL)模型。研究了强子状态方程对相变和中子星性质的影响。我们发现中子星拥有大量的超子,但它的密度不足以拥有一个纯夸克核。中子星核内是否存在强子和夸克物质的混合相取决于所用的RMF参数。

英文摘要:

We study the hadron-quark phase transition in the interior of neutron stars. The relativistic mean field (RMF) theory is adopted to describe the hadronic matter phase, while the Nambu-Jona-Lasinio (NJL) model is used for the quark matter phase. The influence of the hadronic equation of state on the phase transition and neutron star properties are investigated. We find that a neutron star possesses a large population of hyperons, but it is not dense enough to possess a pure quark core. Whether the mixed phase of hadronic and quark matter exist in the core of neutron stars depends on the RMF parameters used.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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