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Modified Dihadron Fragmentation Functions in Hot and Nuclear Matter

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arxiv nucl-th/0412061 v3 pith:I7TBEDON submitted 2004-12-16 nucl-th hep-ph

A. Majumder , Enke Wang , Xin-Nian Wang This is my paper · ORCID
classification nucl-thhep-ph
keywords fragmentationfunctionscentralitycollisionsdihadronenergyfoundhadrons
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Medium 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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. An improved linear Boltzmann transport model for hadron and jet suppression in ultrarelativistic heavy-ion collisions

    nucl-th 2026-02 conditional novelty 6.0 of 10

    An improved LBT model with an earlier medium-scale insertion and color-flow tracking reproduces hadron and jet nuclear modification factors together in 5.02 TeV Pb+Pb collisions.

  2. Helicity correlation of neighboring dihadron

    hep-ph 2024-11 conditional novelty 5.0 of 10

    The helicity correlation of two neighboring hadrons is driven by QCD evolution from the longitudinal spin-transfer function, offering a new unpolarized-collision observable for spin physics.

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