A Novel Approach to Model Hybrid Stars
Solar and Stellar Astrophysics
2010-04-29 v4 High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
Abstract
We extend the hadronic SU(3) non-linear sigma model to include quark degrees of freedom. The choice of potential for the Polyakov loop as a function of temperature and chemical potential allows us to construct a realistic phase diagram from the analysis of the order parameters of the system. These parameters are the chiral condensate, for the chiral symmetry restoration and the Polyakov loop, for the deconfinement to quark matter. Besides reproducing lattice QCD results, for zero and low chemical potential, we are in agreement with neutron star observations for zero temperature.
Keywords
Cite
@article{arxiv.0901.1748,
title = {A Novel Approach to Model Hybrid Stars},
author = {V. A. Dexheimer and S. Schramm},
journal= {arXiv preprint arXiv:0901.1748},
year = {2010}
}