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Medium effects on the thermal conductivity of a hot pion gas

Theoretical Physics Division, Variable Energy Cyclotron Centre, 1/AF Bidhannagar, Kolkata 700064, India

Phys. Rev. D 89, 054013 – Published 13 March, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.054013

Abstract

We investigate the effect of the medium on the thermal conductivity of a pion gas out of chemical equilibrium by solving the relativistic transport equation in the Chapman-Enskog and relaxation time approximations. Using an effective model for the $π π$ cross section involving $ρ$ and $σ$ meson exchange, medium effects are incorporated through thermal one-loop self-energies. The temperature dependence of the thermal conductivity is observed to be significantly affected.

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Medium effects on the thermal conductivity of a hot pion gas

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Medium effects on the viscosities of a pion gas

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