Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-02-09
Phys.Rev.C76:014908,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 3 figures
Scientific paper
10.1103/PhysRevC.76.014908
Measurements of angular correlations of hadrons with a (semi-)hard trigger hadron in heavy-ion collisions at RHIC show large angular structures opposite to the trigger which were a priori unexpected. These away side large angle correlations were first observed in two-particle correlations and have recently also been investigated in three-particle correlation measurements by the PHENIX and STAR collaborations. We show that the correlation signal can be understood in terms of sonic shockwaves ('Mach cones') excited by hard partons supersonically traversing the medium. The propagation of such shocks through the medium evolution is treated in a Monte Carlo (MC) framework. We demonstrate that two- and especially three-particle correlations offer non-trivial insight into the medium-averaged speed of sound and the evolution of flow. Our findings imply that the assumption of "deflected jets" is not necessary to account for the observed correlations.
Renk Thorsten
Ruppert Jorg
No associations
LandOfFree
Three-particle azimuthal correlations and Mach shocks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Three-particle azimuthal correlations and Mach shocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-particle azimuthal correlations and Mach shocks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-443761