Quarkonia in anisotropic hot QCD medium in a quasi-particle model

TL;DR

This paper investigates how anisotropy in a hot QCD medium affects heavy quarkonia stability, using a quasi-particle model to derive a real-time potential and study quarkonia melting.

Contribution

It introduces a novel approach to analyze quarkonia in anisotropic QCD media using a quasi-particle model and real-time potential derived from HTL gluon self-energy.

Findings

Anisotropy significantly alters plasma screening properties.

Quarkonia melting is affected by the medium's equation of state and anisotropy.

The model provides insights into quarkonia behavior in high-temperature QCD environments.

Abstract

The fate of heavy quarkonia states has been investigated in QCD at high temperature when the plasma has a small momentum space anisotropy within a quasi-particle model. A real time static potential has been obtained from a Hard thermal loop expression for the gluon self-energy, by employing the quasi-parton equilibrium distribution functions extracted from hot QCD equations of state of $O(g^5)$ and $O(g^6\ln(1/g))$. Employing the potential, quarkonia melting has been studied. It is found that the equations of state and the momentum anisotropy cause significant modifications in the screening properties of the plasma.