Calculation of the gluon damping rate in hot QCD
E Braaten, RD Pisarski - Physical Review D, 1990 - APS
E Braaten, RD Pisarski
Physical Review D, 1990•APSWe present a complete calculation of the gluon damping rate at zero momentum to leading
order in the QCD coupling constant g. All terms of leading order in g are included by the
resummation of an infinite subset of higher-loop diagrams. At zero momentum, the damping
rates for transverse gluons and plasmons are equal: the result is γ≃+ 0.264013 g 2 T, where
T is the temperature. The sign is positive, which implies that the quark-gluon plasma is
perturbatively stable.
order in the QCD coupling constant g. All terms of leading order in g are included by the
resummation of an infinite subset of higher-loop diagrams. At zero momentum, the damping
rates for transverse gluons and plasmons are equal: the result is γ≃+ 0.264013 g 2 T, where
T is the temperature. The sign is positive, which implies that the quark-gluon plasma is
perturbatively stable.
Abstract
We present a complete calculation of the gluon damping rate at zero momentum to leading order in the QCD coupling constant g. All terms of leading order in g are included by the resummation of an infinite subset of higher-loop diagrams. At zero momentum, the damping rates for transverse gluons and plasmons are equal: the result is γ≃+ 0.264013 g 2 T, where T is the temperature. The sign is positive, which implies that the quark-gluon plasma is perturbatively stable.
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