Mach Cones in Viscous Matter

Authors :: Bouras, I.
El, A.
Fochler, O.
Lauciello, F.
Reining, F.
Uphoff, J.
Wesp, C.
Molnár, E.
Niemi, H.
Xu, Z.
Greiner, C.
Source :: J.Phys.Conf.Ser.270:012012,2011
Publication Year :: 2010
Abstract: Employing a microscopic transport model we investigate the evolution of high energetic jets moving through a viscous medium. For the scenario of an unstoppable jet we observe a clearly strong collective behavior for a low dissipative system $\eta/s \approx 0.005$, leading to the observation of cone-like structures. Increasing the dissipation of the system to $\eta/s \approx 0.32$ the Mach Cone structure vanishes. Furthermore, we investigate jet-associated particle correlations. A double-peak structure, as observed in experimental data, is even for low-dissipative systems not supported, because of the large influence of the head shock.<br />Comment: 4 pages, 3 figures, to appear in the conference proceedings of Hot Quarks 2010