22-27 March 2015
Hotel do Bosque
Brazil/East timezone

Thermodynamics of an exactly solvable confining quark model

26 Mar 2015, 11:00
30m
Hotel do Bosque

Hotel do Bosque

Rodovia Mário Covas (Rio-Santos) BR - 101 Sul, Km 533, Angra dos Reis, RJ, Brazil
Oral presentation Field theoretical approaches to QCD Field theoretical approaches to QCD

Speaker

Prof. Bruno Mintz (UERJ)

Description

The grand partition function of a model of confined quarks is exactly calculated at arbitrary temperatures and quark chemical potentials. The model is inspired by a softly BRST-broken version of QCD and possesses a quark mass function compatible with nonperturbative analyses of lattice simulations and Dyson-Schwinger equations. Even though the model is defined at tree level, we show that it produces a non-trivial and stable thermodynamic behaviour at any temperature or chemical potential. Results for the pressure, the entropy and the trace anomaly as a function of the temperature are qualitatively compatible with the effect of non-perturbative interactions as observed in lattice simulations. The finite density thermodynamics is also shown to contain non-trivial features, being far away from an ideal gas picture.

Primary authors

Prof. Bruno Mintz (UERJ) Dr Leticia Palhares (CEA/Saclay) Prof. Marcelo Guimarães (UERJ)

Presentation Materials