Cold isospin asymmetric baryonic rich matter in nonlocal NJL-like models

Abstract

We study the features of low energy strong interactions for a system at zero temperature and finite baryon and isospin chemical potentials, in the framework of a Nambu--Jona-Lasinio-like model that includes nonlocal four-point interactions. We analyze the phase transitions corresponding to chiral symmetry restoration and pion condensation, comparing our results with those obtained from local NJL-like models and lattice QCD calculations.

Comments: 20 pages, 7 figures. arXiv admin note: text overlap with arXiv:2107.02022