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

Understand

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 $\alpha_s$.