# Two flavor color superconductivity in nonlocal chiral quark models

@article{Duhau2004TwoFC, title={Two flavor color superconductivity in nonlocal chiral quark models}, author={R. S. Duhau and A. G. Grunfeld and Norberto N. Scoccola}, journal={Physical Review D}, year={2004}, volume={70}, pages={074026} }

We study the competence between chiral symmetry restoration and two flavor color superconductivity (2SC) using a relativistic quark model with covariant nonlocal interactions. We consider two different nonlocal regulators: a Gaussian regulator and a Lorentzian regulator. We find that although the phase diagrams are qualitative similar to those obtained using models with local interactions, in our case the superconducting gaps at medium values of the chemical potential are larger. Consequently… Expand

#### 12 Citations

Meson properties at finite temperature in a three flavor nonlocal chiral quark model with Polyakov loop

- Physics
- 2010

We study the finite temperature behavior of light scalar and pseudoscalar meson properties in the context of a three-flavor nonlocal chiral quark model. The model includes mixing with active… Expand

Color Superconductivity and Confinement in the Chromodielectric Model

- Physics
- 2010

We derive an effective Lagrangian for pairing in nonlinear chromodielectric models (CDM), in leading order. The effective pairing coupling depends explicitly on the confinement field, χ , of the CDM.… Expand

THE EFFECT OF CONFINEMENT ON THE CFL QUARK PAIRING IN THE CHROMODIELECTRIC MODEL

- Physics
- 2010

An effective Lagrangian for quark pairing in nonlinear chromodielectric models (CDM) is derived in the leading order. The effective pairing coupling depends explicitly on the confinement field, χ, of… Expand

Nonlocality effects on spin-one pairing patterns in two-flavor color superconducting quark matter and compact stars applications

- Physics
- 2005

We study the influence of nonlocality in the interaction on two spin one pairing patterns of two-flavor quark matter: the anisotropic blue color paring besides the usual two color superconducting… Expand

Hybrid stars within a covariant, nonlocal chiral quark model

- Physics
- 2007

We present a hybrid equation of state (EoS) for dense matter in which a nuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach and a two-flavor quark matter phase… Expand

Characteristics of the chiral phase transition in nonlocal quark models

- Physics
- 2005

The characteristics of the chiral phase transition are analyzed within the framework of chiral quark models with nonlocal interactions in the mean-field approximation. In the chiral limit, we develop… Expand

The Nuclear matter stability in a non-local chiral quark model

- Physics
- 2006

Abstract We study the stability of the nuclear matter in a non-local Nambu–Jona-Lasinio model. We work out the equation of state in a relativistic Faddeev approach where we take into account the… Expand

Phase diagram of three-flavor quark matter under compact star constraints

- Physics
- 2005

The phase diagram of three-flavor quark matter under compact star constraints is investigated within a Nambu--Jona-Lasinio model. Global color and electric charge neutrality is imposed for… Expand

Nonlocal SU(3) chiral quark models at finite temperature: The role of the Polyakov loop

- Physics
- 2008

We analyze the role played by the Polyakov loop in the description of the chiral phase transition within the framework of nonlocal SU(3) chiral models with flavor mixing. We show that its presence… Expand

Phase diagram of neutron star quark matter in nonlocal chiral models

- Physics
- 2007

Abstract.We analyze the phase diagram of two-flavor quark matter under neutron star constraints for a nonlocal covariant quark model within the mean-field approximation. Applications to cold compact… Expand

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