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

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

2007-05-25

arxiv.org/abs/0705.3787v1

Int.J.Mod.Phys.E16:2842-2846,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure

Scientific paper

10.1142/S0218301307008240

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.

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