Characterization of quark gluon plasma as seen through the energy loss of heavy quarks

TL;DR

This paper investigates the properties of quark-gluon plasma, including viscosity ratios and heavy quark potential, using energy loss data, and finds results consistent with lattice QCD and other theoretical methods.

Contribution

It provides a comprehensive analysis of QGP properties such as shear and bulk viscosities, fluidity, and heavy quark potential from energy loss measurements, offering new insights into QGP characteristics.

Findings

{ "shear viscosity to entropy density ratio ({}/s)": "Agrees with lattice QCD results", "bulk viscosity to entropy density ratio ({}/s)": "Estimated from energy loss data", "heavy quark bound state potential (V)": "Estimated within the medium" }

The study links energy loss measurements to fundamental QGP properties and validates results with existing theoretical approaches.

Abstract

The shear viscosity to entropy density ratio ({\eta}/s) of quark gluon plasma produced in ultra- relativistic heavy-ion collisions has been studied from the energy loss of heavy quarks in QGP medium. We have also studied the bulk viscosity to entropy density ratio ({\zeta}/s) and fluidity measure(F) of the medium using the obtained {\eta}/s values. In addition to that, we have estimated the heavy quark bound state potential (V) inside this medium. Our finding of {\eta}/s agrees well with the results obtained by Lattice QCD (LQCD) and functional renormalization group technique.