J/\psi and Upsilon at high temperature

TL;DR

This paper investigates the stability and melting temperatures of J/psi and Upsilon quarkonia in quark-gluon plasma using a screened Coulomb potential with a non-perturbative potential derived from the Field Correlator Method.

Contribution

It introduces a novel approach combining a r-dependent coupling constant with a non-perturbative potential from FCM to analyze quarkonium properties at high temperature.

Findings

Calculated binding energies and melting temperatures for J/psi and Upsilon.

Identified temperature thresholds for quarkonium dissociation.

Provided insights into quark-gluon plasma characteristics.

Abstract

We use the screened Coulomb potential with $r$-dependent coupling constant and the non--perturbative quark--antiquark potential derived within Field Correlator Method (FCM) to calculate $J/\psi$ and $\Upsilon$ binding energies and melting temperatures in the deconfined phase of quark-gluon plasma.