The rapidity structure of Mach cones and other large angle correlations in heavy-ion collisions

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dc.creatorRenk, Thorsten
dc.creatorRuppert, Jorg
dc.date2006-05-30
dc.date2007-01-22
dc.date.accessioned2026-07-07T10:24:56Z
dc.date.available2026-07-07T10:24:56Z
dc.descriptionThe pattern of angular correlations of hadrons with a (semi-)hard trigger hadron in heavy-ion collisions has attracted considerable interest. In particular, unexpected large angle structures on the away side (opposite to the trigger) have been found. Several explanations have been brought forward, among them Mach shockwaves and Cherenkov radiation. Most of these scenarios are characterized by radial symmetry around the parton axis, thus angular correlations also determine the rapidity dependence of the correlation. If the observed correlations are remnants of an away side parton after interaction with the medium created in the collision, pQCD allows to calculate the distribution $P(y)$ of the away side partons in rapidity. The measured correlation then arises as a folding of $P(y)$ and the rapidity structure of the correlation taking into account the detector acceptance. This places non-trivial and rather stringent constraints on the underlying scenario. We investigate these dependences and demonstrate that Mach shockwaves survive this folding procedure well whereas Cherenkov radiation scenarios face new challenges.
dc.description9 pages, 3 figures, version to appear in Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/hep-ph/0605330
dc.identifierhttp://arxiv.org/abs/hep-ph/0605330
dc.identifierPhys.Lett.B646:19-23,2007
dc.identifierdoi:10.1016/j.physletb.2007.01.008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176370
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe rapidity structure of Mach cones and other large angle correlations in heavy-ion collisions
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