Leading order, next-to-leading order, and non-perturbative parton collision kernels: effects in static and evolving media

Abstract

Energetic partons traveling in a strongly interacting medium lose energy by emitting radiation and through collisions with medium constituents. Non-perturbative, next-to-leading order and leading order collision kernels are implemented within AMY-McGill formalism. The resulting gluon emission rates are then evaluated and compared by considering scattering occurring in a brick of quark-gluon plasma, as well as in a realistic simulation of Pb-Pb, collisions at $\sqrt{s}=2.76$ ATeV using MARTINI. We find that the variations in quenching of hard partons resulting from using different kernels can be important, depending on the overall value of the strong coupling constant ${\alpha }_s$.

Published version

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Cited by in corpus (4)

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• In-medium gluon radiation spectrum with all-order resummation of multiple scatterings in longitudinally evolving media
• Glauber quark and gluon contributions to quark energy loss at next-to-leading order and next-to-leading twist
• A modular perspective to the jet suppression from a small to large radius in very high transverse momentum jets