HTL approach to the viscosity of quark plasma

Abstract

The quark viscosity in the quark gluon plasma is evaluated in HTL approximation. The different contributions to the viscosity arising from the various components of the quark spectral function are discussed. The calculation is extended to finite values of the chemical potential.

arXiv comment9 pages, 3 figures

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• On the contribution of plasminos to the shear viscosity of a hot and dense Yukawa-Fermi gas
• Transport coefficients of the quark-gluon plasma in ultrarelativistic limit