Small Quarkonium states in an anisotropic QCD plasma

TL;DR

This paper investigates how small quarkonium states behave in an anisotropic quark-gluon plasma, revealing stronger binding and angular dependence of the potential compared to isotropic conditions.

Contribution

It provides a new calculation of the heavy quark potential in anisotropic QCD plasmas using the hard-loop resummed propagator in covariant gauges.

Findings

Potential exhibits angular dependence.

Binding of small quarkonium states is stronger in anisotropic plasma.

Potential differs significantly from isotropic case.

Abstract

We determine the hard-loop resummed propagator in an anisotropic QCD plasma in general covariant gauges and define a potential between heavy quarks from the Fourier transform of its static limit. We find that the potential exhibits angular dependence and that binding of very small quarkonium states is stronger than in an isotropic plasma.