Transport coefficients of a hot πKN gas are computed with in-medium cross sections from thermal field theory, showing medium effects increase relaxation times and modify η, ζ, and λ.
Heat conductivity of a pion gas
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abstract
We evaluate the heat conductivity of a dilute pion gas employing the Uehling-Uehlenbeck equation and experimental phase-shifts parameterized by means of the SU(2) Inverse Amplitude Method. Our results are consistent with previous evaluations. For comparison we also give results for an (unphysical) hard sphere gas.
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Viscous coefficients and thermal conductivity of a $\pi K N$ gas mixture in the medium
Transport coefficients of a hot πKN gas are computed with in-medium cross sections from thermal field theory, showing medium effects increase relaxation times and modify η, ζ, and λ.