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Article Dans Une Revue Journal of High Energy Physics Année : 2009

Thermal Transport and Drag Force in Improved Holographic QCD

Résumé

We calculate the bulk viscosity, drag force and jet quenching parameter in Improved Holographic QCD. We find that the bulk viscosity rises near the phase transition but does not exceed the shear viscosity. The drag force shows the effects of asymptotic freedom both as a function of velocity and temperature. It indicates diffusion times of heavy quarks in rough agreement with data. The jet quenching parameter values computed via the light-like Wilson loop are in the lower range suggested by data.

Dates et versions

hal-00713164 , version 1 (29-06-2012)

Identifiants

Citer

U. Gürsoy, E. Kiritsis, G. Michalogiorgakis, F. Nitti. Thermal Transport and Drag Force in Improved Holographic QCD. Journal of High Energy Physics, 2009, 12, pp.056. ⟨10.1088/1126-6708/2009/12/056⟩. ⟨hal-00713164⟩
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