Electrical conductivity of Hot and Dense QCD matter at RHIC BES energies: A Color String Percolation Approach

Abstract

Recently, transport coefficients viz. shear viscosity, electrical conductivity etc. of strongly interacting matter produced in heavy-ion collisions have drawn considerable interest. We study the normalised electrical conductivity (${\sigma }_{\mathrm{el}}$/T) of hot QCD matter as a function of temperature (T) using the Color String Percolation Model (CSPM). We also study the temperature dependence of shear viscosity and its ratio with electrical conductivity for the QCD matter. We compare CSPM estimations with various existing results and lattice Quantum Chromodynamics (lQCD) predictions with (2+1) dynamical flavours. We find that ${\sigma }_{\mathrm{el}}$/T in CSPM has a very weak dependence on the temperature. We compare CSPM results with those obtained in Boltzmann Approach to Multi-Parton Scatterings (BAMPS) model. A good agreement is found between CSPM results and predictions of BAMPS with fixed strong coupling constant.

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• Interacting color strings as the origin of the liquid behavior of the quark-gluon plasma
• Hadronic transport coefficients from the linear sigma model at finite temperature
• Electromagnetic response in an expanding quark-gluon plasma
• Wiedemann-Franz Law For Hot QCD Matter in a Color String Percolation Scenario
• Charge asymmetry dependence of the elliptic flow splitting in relativistic heavy-ion collisions
• Jet Transport Coefficient at the Large Hadron Collider Energies in a Color String Percolation Approach
• Elliptic flow of hadrons via quark coalescence mechanism using Boltzmann transport equation for Pb+Pb collision at $\sqrt{s_{NN}}$=2.76 TeV
• Rotating solutions of nonideal transverse Chern-Simons magnetohydrodynamics and the anomalous Hall current
• Color-electric conductivity in a viscous quark-gluon plasma
• Structure of the medium formed in heavy ion collisions