Fully coherent energy loss effects on light hadron production in pA collisions
Résumé
We single out the role of fully coherent induced gluon radiation on light hadron production in pA collisions. The effect has the same general features as for quarkonium production, however with a richer color structure as the induced radiation depends on the global color charge of the partonic subprocess final state. Baseline predictions for light hadron nuclear suppression in pPb collisions at the LHC are provided, taking into account only the effect of fully coherent energy loss, which proves to be of the same order of magnitude as gluon shadowing or saturation. This underlines the need to include fully coherent energy loss in phenomenological studies of hadron production in pA collisions.
Mots clés
CERN LHC Coll
suppression
structure
parton: hard scattering
transverse momentum: momentum spectrum
p nucleus: scattering
perturbative QCD
proton-nucleus collisions
parton energy loss
QCD Phenomenology
quantum chromodynamics: perturbation theory
hadron: production
radiation: induced
gluon: radiation
gluon: shadowing
charge: color
color: global
coherence
energy loss
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Arleo2020_Article_FullyCoherentEnergyLossEffects.pdf (876.78 Ko)
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