Thermodynamics and heavy quark potential in N_f=2 dynamical QCD

TL;DR

This paper investigates the thermodynamics and heavy quark potential in N_f=2 lattice QCD at finite temperature, determining the transition temperature and analyzing string breaking phenomena.

Contribution

It provides the first nonperturbative determination of the transition temperature and models the static potential at finite temperature using a string-inspired approach.

Findings

Transition temperature determined at m_π/m_ρ ≈ 0.8

String breaking observed below T_c

Static potential fits a string model at finite temperature

Abstract

We study N_f=2 lattice QCD with nonperturbatively improved Wilson fermions at finite temperature on 16^3 \cdot 8 lattices. We determine the transition temperature at m_{\pi}/m_{\rho} \sim 0.8 and lattice spacing as small as 0.12fm. The string breaking at T < T_c is also studied. We find that the static potential can be fitted by a simple expression involving string model potential at finite temperature.