Jet quenching with running coupling including radiative and collisional energy losses
B. G. Zakharov
L.D. Landau Institute for Theoretical Physics RAS, 117334 Moscow, Russia
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
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
Our results show that the energy gain gives negligible effect.