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arxiv: 0903.4703 · v2 · submitted 2009-03-26 · ✦ hep-ph · nucl-th

The imaginary part of the static gluon propagator in an anisotropic (viscous) QCD plasma

classification ✦ hep-ph nucl-th
keywords anisotropicgluonimaginarypartplasmapropagatorsmallerstatic
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We determine viscosity corrections to the retarded, advanced and symmetric gluon self energies and to the static propagator in the weak-coupling "hard loop" approximation to high-temperature QCD. We apply these results to calculate the imaginary part of the heavy-quark potential which is found to be smaller (in magnitude) than at vanishing viscosity. This implies a smaller decay width of quarkonium bound states in an anisotropic plasma.

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