Low-Shear QCD Plasma from Perturbation Theory†
AbstractWe argue that the inferred ratio of shear viscosity to entropy density of the quark-gluon
plasma, h/s < 0.5 near the deconfinement temperature Tc, can be understood from perturbative QCD.
To rebut opposite views, we first show that the existing leading order result should not be expanded
in logarithms. After then settling the question of scale for the running coupling, we establish a
temperature dependence of h/s which agrees well with constraints from hydrodynamics.
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Jackson, G.; Peshier, A. Low-Shear QCD Plasma from Perturbation Theory. Proceedings 2019, 10, 7.
Jackson G, Peshier A. Low-Shear QCD Plasma from Perturbation Theory. Proceedings. 2019; 10(1):7.Chicago/Turabian Style
Jackson, Greg; Peshier, Andre. 2019. "Low-Shear QCD Plasma from Perturbation Theory." Proceedings 10, no. 1: 7.
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