Hybrid stars with color superconductivity within a nonlocal chiral quark model

H. Grigorian; D. Blaschke; D. N. Aguilera

doi:10.1103/PhysRevC.69.065802

← Back to search

Hybrid stars with color superconductivity within a nonlocal chiral quark model

H. Grigorian, D. Blaschke, D. N. Aguilera

DOI 10.1103/PhysRevC.69.065802 · Physical Review C

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. Special emphasis is on the occurrence of a diquark condensate which signals a phase transition to color superconductivity and its effects on the equation of state. We present a fit formula for the Bag pressure, which is density dependent in the case when the quark matter is color superconducting. We calculate the quark star configurations by solving the Tolman-Oppenheimer-Volkoff equations and demonstrate the effects of diquark condensation on the stability of hybrid stars for different form factors of the quark interaction.