Charmonium properties at finite temperature on quenched anisotropic lattices

TL;DR

This paper investigates charmonium properties at finite temperatures up to 1.8 times the critical temperature using lattice QCD techniques, spectral function analysis, and potential models to understand their behavior in quark-gluon plasma.

Contribution

It combines spectral function extraction with potential model analysis to study charmonium states at finite temperature on quenched anisotropic lattices, providing new insights into their thermal modifications.

Findings

Charmonium states persist above $T_c$ up to 1.8$T_c$

Spectral functions indicate modifications of charmonium properties at high temperature

Potential model analysis correlates lattice spectral data with quark-antiquark interactions

Abstract

We study charmonium properties below and above $T_c$ up to 1.8$T_c$, on quenched anisotropic lattices. Information of the spectral functions is extracted using the maximum entropy method and the constrained curve fitting. We also calculate the color singlet and averaged free energies and evaluate the charmonium spectrum with the potential model analysis. The relation between the lattice result of the spectral function analysis and the potential model is discussed.