Contribution of Kaon component in viscosity and conductivity of hadronic medium

Abstract

The two-point correlation functions of kaonic viscous stress tensors and electro-magnetic currents have been calculated respectively to estimate the contributions of the strange sector in the shear viscosity and electrical conductivity of hadronic medium. In the one-loop correlators, kaon propagators contain a non-zero thermal width that leads to non-divergent values of transport coefficients. With the help of effective Lagrangian densities of strange hadrons, we have calculated in-medium self-energy of kaon for different possible mesonic loops, whose imaginary part provide the estimation of kaon thermal width. It is observed that near the quark-hadron transition temperature, the contribution of kaons to shear viscosity is larger and increases faster with temperature than pionic contribution. In case of electrical conductivity the trend due kaon component appears to be opposite in nature with respect to pion component.

References in corpus (23)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Spectral functions at small energies and the electrical conductivity in hot, quenched lattice QCD
• Quasi-Particle Theory of Shear and Bulk Viscosities of Hadronic Matter
• Influence of the shear viscosity of the quark-gluon plasma on elliptic flow in ultrarelativistic heavy-ion collisions
• Magnetic-Field-Induced insulator-conductor transition in SU(2) quenched lattice gauge theory
• Electric conductivity of the quark-gluon plasma investigated using a perturbative QCD based parton cascade
• Shear viscosity of a hadronic gas mixture
• Electric Conductivity from the solution of the Relativistic Boltzmann Equation
• Viscosity coefficients for hadron and quark-gluon phases
• Bulk and shear viscosities of hot and dense hadron gas
• Transport coefficients in Polyakov quark meson coupling model: a relaxation time approximation
• Shear Viscosity of a Hot Pion Gas
• A real-time thermal field theoretical analysis of Kubo-type shear viscosity : Numerical understanding with simple examples
• Electrical Conductivity of an Anisotropic Quark Gluon Plasma : A Quasiparticle Approach
• The nucleon thermal width due to pion-baryon loops and its contribution in Shear viscosity
• Electrical conductivity of hadronic matter from different possible mesonic and baryonic thermal fluctuations
• Shear Viscosity and Phase Diagram from Polyakov$-$Nambu$-$Jona-Lasinio model
• Effect of spectral modification of $\rho$ on shear viscosity of a pion gas
• Kubo formulae for the shear and bulk viscosity relaxation times and the scalar field theory shear ${\tau }_{\pi }$ calculation
• SU(3) Polyakov linear-sigma model: Conductivity and viscous properties of QCD matter in thermal medium
• Electromagnetic Radiation in Hot QCD Matter: Rates, Electric Conductivity, Flavor Susceptibility and Diffusion
• Medium effects on the electrical conductivity of a hot pion gas
• Relativistic Nuclear Collisions

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• Viscous coefficients and thermal conductivity of a $\pi KN$ gas mixture in the medium
• Quantum field theoretical structure of electrical conductivity of cold and dense fermionic matter in the presence of a magnetic field