Static meson correlators in 2+1 flavor QCD at non-zero temperature

TL;DR

This study investigates static meson correlation functions at non-zero temperature in 2+1 flavor QCD, analyzing their temperature dependence and implications for static quark-antiquark energy using lattice simulations.

Contribution

It provides new lattice QCD results on static meson correlators with various operators at finite temperature, including Coulomb gauge fixed operators and smeared Wilson loops.

Findings

Correlation functions vary with temperature.

Implications for static quark-antiquark energy.

Results obtained on 24^3x6 lattices.

Abstract

We study correlation functions of various static meson operators of size r at non-zero temperature in 2+1 flavor QCD, including Coulomb gauge fixed operators and Wilson loops with smeared spatial parts. The numerical calculations are performed on 24^3x6 lattices using highly improved staggered quark action. We discuss possible implications of our findings on the temperature dependence of the static energy of QQbar pair.