Modified Dihadron Fragmentation Functions in Hot and Nuclear Matter

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dc.creatorMajumder, A.
dc.creatorWang, Enke
dc.creatorWang, Xin-Nian
dc.date2004-12-16
dc.date2007-06-22
dc.date.accessioned2026-07-07T11:07:25Z
dc.date.available2026-07-07T11:07:25Z
dc.descriptionMedium modification of dihadron fragmentation functions due to gluon bremsstrahlung induced by multiple partonic scattering is studied in both deep-inelastic scattering (DIS) off large nuclei and high-energy heavy-ion collisions within the same framework of twist expansion. The modified fragmentation functions for dihadrons are found to follow closely that of single hadrons leading to a weak nuclear suppression of their ratios as measured by HERMES in DIS experiments. Meanwhile, a moderate medium enhancement of the near-side correlation of two high transverse momentum hadrons with increasing centrality is found in heavy-ion collisions because of the trigger bias and the increase in parton energy loss with centrality. Successful comparisons between theory and experiment for multi-hadron observables in both confining and deconfined environments offers comprehensive evidence for partonic energy loss as the mechanism of jet modification in dense matter.
dc.description4 pages, Revtex, 2 figures, revised figures and discussion
dc.identifierhttps://arxiv.org/abs/nucl-th/0412061
dc.identifierhttp://arxiv.org/abs/nucl-th/0412061
dc.identifierPhys.Rev.Lett.99:152301,2007
dc.identifierdoi:10.1103/PhysRevLett.99.152301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189838
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleModified Dihadron Fragmentation Functions in Hot and Nuclear Matter
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