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arXiv 0705.3787hep-ph
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具有非定域手征夸克模型的混合致密星的状态方程

Equation of state for hybrid compact stars with a nonlocal chiral quark model

A. G. Grunfeld, J. Berdermann, D. B. Blaschke, T. Klahn, D. Gomez Dumm, N. N. Scoccola

摘要:

在非定域手征夸克模型中,利用瞬时和协变非定域相互作用,研究了双色超导夸克物质的热力学性质。对于紧凑型恒星的应用程序,我们施加的条件,电和色电荷中性以及β平衡,并构建一个相变的强子物质相位描述内的Dirac-Brueckner-Hartree-Fock(DBHF)的方法。我们得到的质量半径关系的混合星配置,满足现代观测的限制,包括紧凑的恒星质量超过2 M太阳。

英文摘要:

We study the thermodynamics of two flavor color superconducting (2SC) quark matter within a nonlocal chiral quark model, using both instantaneous and covariant nonlocal interactions. For applications to compact stars, we impose conditions of electric and color charge neutrality as well as beta equilibrium and construct a phase transition to the hadronic matter phase described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach. We obtain mass-radius relations for hybrid star configurations which fulfill modern observational constraints, including compact star masses above 2 M_sun.

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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