Investigation of Mach cones and the corresponding two-particle correlations in a microscopic transport model

Abstract

We study the formation of Mach cones in a full (3 + 1)-dimensional setup of relativistic heavy-ion collisions, considering a transverse and longitudinal expanding medium at RHIC energies. For smooth initial conditions and central collisions we investigate the jet-medium interaction using high-energy jets and by varying the value of the shear viscosity over entropy density ratio, η/s. For small viscosities we observe the formation of Mach cones, while for larger viscosities the characteristic structures smear out and vanish eventually. We discuss the formation of a doublepeak structure both in a single and a multiple jet event.