O(g) plasma effects in jet quenching
By S. Caron-Huot. 2008
149 citations recorded by the source corpus.
We consider the bremsstrahlung energy loss of high-energy partons moving in the quark-gluon plasma, at weak coupling. We show that the rates for these processes receive large $O(g)$ corrections from classical (non-Abelian) plasma physics effects, which are calculated. In the high-energy (deep Landau-Pomeranchuk-Migdal) regime these corrections can be absorbed in a change of the transverse momentum broadening coefficient $\stackrel{^}{q}$, which we give to the next-to-leading order. The correction is large even at relatively weak couplings ${\ensuremath{\alpha}}_{s}\ensuremath{\sim}0.1$, as is typically found for such effects, signaling difficulties with the perturbative expansion. Our approach is based on an effective Euclideanization property of classical physics near the light cone, which allows an effective theory approach in Euclidean space and suggests new possibilities for the nonperturbative lattice study of these effects.
Subfields: Applied Mathematics, Geophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6eedb59413a09a43029cc74bd404e3053c2a55d5
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In Applied Mathematics
In Geophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Heavy ions and string theory (2013, methodology): “At weak coupling this prescription can be justified, and has been used to determine the jet-quenching parameter beyond leading order [162].”
- Thermal production of ultrarelativistic right-handed neutrinos: complete leading-order results (2012, background): “The reason why the complicated HTL resummed propagator gives such a simple result has been identified in [42].”
- Jet quenching in high-energy heavy-ion collisions (2015, methodology): “This is about twice the value obtained from NLO perturbative QCD result.(114)”