Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-04-28
J.Phys.G35:104106,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 3 figures, To appear in the proceedings of Quark Matter 2008
Scientific paper
10.1088/0954-3899/35/10/104106
The observation of jet quenching and associated away--side Mach cone--like correlations at RHIC provide powerful ``external'' probes of the sQGP produced in A+A reactions, but it simultaneously raises the question where the jet energy was deposited. The nearly perfect bulk fluidity observed via elliptic flow suggests that Mach cone--like correlations may also be due to rapid local equilibration in the wake of penetrating jets. Multi-particle correlations lend further support to this possibility. However, a combined study of energy deposition and fluid response is needed. We solve numerically 3--dimensional ideal hydrodynamical equations to compute the flow correlation patterns resulting from a variety of possible energy-momentum deposition models. Mach--cone correlations are shown to depend critically on the energy and momentum deposition mechanisms. They only survive for a special limited class of energy--momentum loss models, which assume significantly less longitudinal momentum loss than energy loss per unit length. We conclude that the correct interpretation of away--side jet correlations will require improved understanding and independent experimental constraints on the jet energy--momentum loss to fluid couplings.
Betz Barbara
Gyulassy Miklos
Rischke Dirk H.
Stocker Horst
Torrieri Giorgio
No associations
LandOfFree
Jet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics 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 Jet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-691826