Jet quenching parameter in the gluon plasma with soft and hard components

Journal Article · Fri Aug 29 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2987165· OSTI ID:21152386

Antonov, D; Pirner, H -J ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Heidelberg, Philosophenweg 19, D-69120 Heidelberg (Germany)

We put forward a model of jet quenching, in which a parton traversing the quark-gluon plasma loses its energy by interacting with hard thermal gluons through the exchanges by soft gluons. The hard gluons are modeled by the Hard Thermal Loop effective theory, the soft gluons by the chromo-magnetic condensate, the interaction mechanism between the two is Landau damping of the soft gluons by the hard ones. Within such a model, we calculate the jet quenching parameter of a gluon in SU(3) quenched QCD and find that, when the temperature varies from T = T{sub c} = 270 MeV to T = 900 MeV, the jet quenching parameter rises from q- circumflex = 0 to approximately 1.8 GeV{sup 2}/fm. We compare our results with the predictions of perturbative QCD and some other nonperturbative calculations.

• OSTI ID: 21152386
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1038; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPARATIVE EVALUATIONS
GLUONS
JET MODEL
LANDAU DAMPING
MEV RANGE
MULTIPLE PRODUCTION
QUANTUM CHROMODYNAMICS
QUARK MATTER
QUARKS
SU-3 GROUPS