Electrical conductivity of hot and dense QCD matter created in heavy-ion collisions: A color string percolation approach

2018/04/30 by Pragati Sahoo, Swatantra Kumar Tiwari, R. Sahoo +1 · 2 citations
Physics and Astronomy · #Condensed matter physics #Conductivity #Electrical resistivity and conductivity #High-Energy Particle Collisions Research #Particle physics #Particle physics theoretical and experimental studies #Parton #Percolation (cognitive psychology) #Percolation threshold #Physics #QCD matter #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark–gluon plasma #Sigma #hep-ex #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevd.98.054005

published as Phys. Rev. D 98, 054005 (2018) · Same as published version

openalex created_date 2018/05/07 · openalex publication_date 2018/09/06 · arxiv created 2018/09/10 · arxiv updated 2018/09/11 · openalex updated_date 2026/08/05

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 normalized electrical conductivity (\ensuremathσ_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 QCD predictions with (2+1) dynamical flavors. We find that \ensuremathσ_el/T in CSPM has a very weak dependence on the temperature. We compare CSPM results with those obtained in the Boltzmann approach to multiparton scatterings model. A good agreement is found between CSPM results and predictions of the Boltzmann approach to multiparton scatterings with a fixed strong coupling constant.

Citations

• Nucleon thermal width owing to pion-baryon loops and its contributions to shear viscosity
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Cited by

• Wiedemann-Franz Law For Hot QCD Matter in a Color String Percolation Scenario
• Jet Transport Coefficient at the Large Hadron Collider Energies in a Color String Percolation Approach