Jet modification in three dimensional fluid dynamics at next-to-leading twist

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dc.creatorMajumder, A.
dc.creatorNonaka, C.
dc.creatorBass, S. A.
dc.date2007-03-07
dc.date2007-04-16
dc.date.accessioned2026-07-07T11:24:04Z
dc.date.available2026-07-07T11:24:04Z
dc.descriptionThe modification of the single inclusive spectrum of high transverse momentum ($p_T $) pions emanating from an ultra-relativistic heavy-ion collision is investigated. The deconfined sector is modelled using a full three dimensional (3-D) ideal fluid dynamics simulation. Energy loss of high $p_T$ partons and the ensuing modification of their fragmentation is calculated within perturbative QCD at next-to-leading twist, where the magnitude of the higher twist contribution is modulated by the entropy density extracted from the 3-D fluid dynamics simulation. The nuclear modification factor ($R_{AA}$) for pions with a $p_T \geq 8$ GeV as a function of centrality as well as with respect to the reaction plane is calculated. The magnitude of contributions to the differential $R_{AA}$ within small angular ranges, from various depths in the dense matter is extracted from the calculation and demonstrate the correlation of the length integrated density and the $R_{AA}$ from a given depth. The significance of the mixed and hadronic phase to the overall magnitude of energy loss are explored.
dc.description5 pages, 4 figures, Revtex
dc.identifierhttps://arxiv.org/abs/nucl-th/0703019
dc.identifierhttp://arxiv.org/abs/nucl-th/0703019
dc.identifierPhys.Rev.C76:041902,2007
dc.identifierdoi:10.1103/PhysRevC.76.041902
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195107
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleJet modification in three dimensional fluid dynamics at next-to-leading twist
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