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"Equation of state for hybrid compact stars with a nonlocal chiral quark model"
A.G. Grunfeld, J. Berdermann, D.B. Blaschke, T. Klähn, D. Gómez Dumm and N.N. Scoccola
Proc. of the "International X Hadron Physics Workshop", Florianópolis, Brazil, April 26-31, 2007.
Int. J. Mod. Phys. E 16 (2007) 2842-2846
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 β 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 2Mo.
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