Nonet meson properties in Nambu-Jona-Lasinio model with dimensional regularization at finite temperature and chemical potential

TL;DR

This paper investigates nonet meson properties within the Nambu-Jona-Lasinio model at finite temperature and chemical potential, comparing dimensional regularization with cutoff regularization, revealing notable differences in chiral phase transition behavior.

Contribution

It introduces the use of dimensional regularization in the NJL model at finite temperature and chemical potential, highlighting differences from traditional cutoff regularization.

Findings

Similar meson property descriptions with both regularizations

Remarkable differences in chiral phase transition behavior

Dimensional regularization provides a viable alternative to cutoff methods

Abstract

The nonet meson properties are studied in the Nambu-Jona-Lasinio model at finite temperature and chemical potential using dimensional regularization. This study leads to the reasonable description which is mainly similar to one obtained in the model with the cutoff regularization. However, remarkable differences between the two regularizations are observed in the behavior of the chiral phase transition at finite chemical potential.