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 in the thermal suppression of αs with rising temperature.
Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- December 2020
- High Energy Physics - Phenomenology;
- Nuclear Theory
- 7 pages, 3 figures, accepted for publication in JETP Letters. arXiv admin note: text overlap with arXiv:2007.09772