Quark matter under strong magnetic field in chiral models

TL;DR

This paper investigates quark matter subjected to strong magnetic fields using chiral models, comparing results with other models and emphasizing the importance of vacuum corrections in parameter fitting.

Contribution

It introduces a detailed analysis of vacuum corrections in chiral models of quark matter under magnetic fields and compares these with other prevalent models.

Findings

Vacuum corrections significantly affect model parameters.

Explicit inclusion of vacuum effects is necessary for accurate modeling.

Comparison shows differences between chiral and other models under magnetic fields.

Abstract

The chiral model is used to describe quark matter under strong magnetic fields and compared to other models, the MIT bag model and the two flavors Nambu-Jona-Lasinio model. The effect of vacuum corrections due to the magnetic field is discussed. It is shown that if the magnetic field vacuum corrections are not taken into account explicitly the parameters of the models should be fitted to low density meson properties in the presence of the magnetic field.