Jet quenching with T-dependent running coupling
B. G. Zakharov
L. D. Landau Institute for Theoretical Physics, 117334 Moscow, Russia
Steklov Mathematical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
Abstract
We perform an analysis of jet quenching in heavy ion collisions
at RHIC and LHC energies with the temperature dependent running
QCD coupling. Our results show that the T-dependent QCD coupling
largely eliminates the difference between the optimal
values of αs for the RHIC and LHC energies.
It may be viewed as direct evidence of the increase
of the thermal suppression
of αs with rising temperature.