The phase diagram of N_f=2 and N_f=2+1 QCD from quark and gluon propagators

TL;DR

This paper investigates the phase diagram of QCD with two and three flavors using Dyson-Schwinger equations, revealing a critical end-point and the nature of chiral and deconfinement transitions at finite temperature and chemical potential.

Contribution

It introduces a truncated Dyson-Schwinger equation approach including back-coupling effects to study the QCD phase diagram with strange quarks.

Findings

Critical end-point at mu/T = 1.9

Chiral and deconfinement transitions coincide

Influence of strange quarks studied

Abstract

In this talk we present results for the propagators and the phase diagram of QCD, obtained from a truncated set of Dyson-Schwinger equations at finite temperature T and quark chemical potential mu. We include back-coupling effects of the dressed quark and gluon propagators, which also allows us to study the influence of strange quarks. For the phase diagram we find a critical end-point at mu/T = 1.9 and coinciding chiral and deconfinement phase transitions.