Jet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics

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dc.creatorBetz, Barbara
dc.creatorGyulassy, Miklos
dc.creatorRischke, Dirk H.
dc.creatorStöcker, Horst
dc.creatorTorrieri, Giorgio
dc.date2008-04-28
dc.date.accessioned2026-07-07T11:50:19Z
dc.date.available2026-07-07T11:50:19Z
dc.descriptionThe 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.
dc.description4 pages, 3 figures, To appear in the proceedings of Quark Matter 2008
dc.identifierhttps://arxiv.org/abs/0804.4408
dc.identifierhttp://arxiv.org/abs/0804.4408
dc.identifierJ.Phys.G35:104106,2008
dc.identifierdoi:10.1088/0954-3899/35/10/104106
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203527
dc.subjectHigh Energy Physics - Phenomenology
dc.titleJet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics
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