Chiral model approach to quark matter nucleation in neutron stars

TL;DR

This paper investigates the nucleation of quark matter in neutron stars using chiral models, analyzing the phase transition from hadronic to quark matter and its implications for neutron star physics.

Contribution

It introduces a chiral model approach with Nambu-Jona-Lasinio and Chromo Dielectric models to study quark matter nucleation in neutron stars, including hyperon effects.

Findings

Hyperons influence the transition density between hadronic and quark matter.

Nucleation processes affect neutron star stability and evolution.

Chiral models provide a consistent framework for phase transition analysis.

Abstract

The nucleation process of quark matter in both cold and hot dense hadronic matter is investigated using a chiral approach to describe the quark phase. We use the Nambu-Jona-Lasinio and the Chromo Dielectric models to describe the deconfined phase and the non-linear Walecka model for the hadronic one. The effect of hyperons on the transition phase between hadronic and quark matter is studied. The consequences of the nucleation process for neutron star physics are outlined.