Effects of the Running of the QCD Coupling on the Energy Loss in the Quark-Gluon Plasma

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dc.creatorBraun, Jens
dc.creatorPirner, Hans-Jürgen
dc.date2006-10-25
dc.date.accessioned2026-07-07T11:06:00Z
dc.date.available2026-07-07T11:06:00Z
dc.descriptionFinite temperature modifies the running of the QCD coupling alpha_s(k,T) with resolution k. After calculating the thermal quark and gluon masses selfconsistently, we determine the quark-quark and quark-gluon cross sections in the plasma based on the running coupling. We find that the running coupling enhances these cross sections by factors of two to four depending on the temperature. We also compute the energy loss dE/dx of a high-energy quark in the plasma as a function of temperature. Our study suggests that, beside t-channel processes, inverse Compton scattering is a relevant process for a quantitative understanding of the energy loss of an incident quark in a hot plasma.
dc.description14 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0610331
dc.identifierhttp://arxiv.org/abs/hep-ph/0610331
dc.identifierPhys.Rev.D75:054031,2007
dc.identifierdoi:10.1103/PhysRevD.75.054031
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189383
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffects of the Running of the QCD Coupling on the Energy Loss in the Quark-Gluon Plasma
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