Collisional vs. Radiative Energy Loss of Heavy Quark in a Hot and Dense Nuclear Matter

Abstract

We study the heavy quark evolution in a quark-gluon plasma medium within the framework of Langevin equation coupled to a (2+1)-dimensional viscous hydrodynamic model. We modify the current Langevin algorithm such that apart from quasi-elastic scattering, medium-induced radiative energy loss is incorporated as well by treating gluon radiation as an extra force term. We find a significant effect of gluon radiation on heavy quark energy loss at LHC energies. Our calculation provides a good description of the D meson suppression measured by ALICE experiment, and makes a prediction for B meson suppression and flow.

4 pages, 6 figures, talk given by Shanshan Cao at Quark Matter 2012

References in corpus (4)

• PYTHIA 6.4 Physics and Manual
• Suppression of elliptic flow in a minimally viscous quark-gluon plasma
• Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
• Thermalization of charm quarks in infinite and finite QGP matter

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