Radiative heavy quark energy loss in a dynamical QCD medium

Details Radiative heavy quark energy loss in a dynamical QCD medium Radiative heavy quark energy loss in a dynamical QCD medium

2007-05-23

arxiv.org/abs/0705.3439v1

Phys.Rev.C77:024905,2008

Physics

Nuclear Physics

Nuclear Theory

21 pages, 14 figures, submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.77.024905

The computation of radiative energy loss in a dynamically screened QCD medium is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. We calculate, to first order in the opacity, the energy loss suffered by a heavy quark traveling through an infinite and time-independent QCD medium and show that the result for a dynamical medium is almost twice that obtained previously for a medium consisting of randomly distributed static scattering centers. A quantitative description of jet suppression in RHIC and LHC experiments thus must correctly account for the dynamics of the medium's constituents.

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