Charmed mesons at finite temperature and chemical potential

TL;DR

This paper calculates the masses of certain mesons at finite temperature and chemical potential using Dyson-Schwinger equations, providing results consistent with lattice QCD and offering new predictions for chemical potential effects.

Contribution

It introduces a symmetry-preserving Dyson-Schwinger equation approach to study meson masses at finite temperature and chemical potential, including novel chemical potential dependence predictions.

Findings

Meson masses increase with temperature in qualitative agreement with lattice QCD.

Chemical potential significantly affects meson masses, providing new theoretical predictions.

Results support the validity of the Dyson-Schwinger approach for finite temperature and density QCD studies.

Abstract

We compute the masses of the pseudoscalar mesons $\pi^+$ , $K^0$ and $D^+$ at finite temperature and baryon chemical potential. The computations are based on a symmetry- preserving Dyson-Schwinger equation treatment of a vector-vector four quark contact interaction. The results found for the temperature dependence of the meson masses are in qualitative agreement with lattice QCD data and QCD sum rules calculations. The chemical potential dependence of the masses provide a novel prediction of the present computation.