Jet quenching with running coupling including radiative and collisional energy losses

Abstract

We calculate the nuclear modification factor for RHIC and LHC conditions accounting for the radiative and collisional parton energy loss with the running coupling constant.We find that the RHIC data can be explained both in the scenario with the chemically equilibrium quark-gluon plasma and purely gluonic plasma with slightly different thermal suppression of the coupling constant. The role of the parton energy gain due to gluon absorption is also investigated. Our results show that the energy gain gives negligible effect.

11 pages, 3 figures

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• Global Constraints from RHIC and LHC on Transport Properties of QCD Fluids in CUJET/CIBJET Framework
• A pQCD-based description of heavy and light flavor jet quenching
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