2002/08/01 by J. T. Lenaghan, Jonathan Lenaghan, Lenaghan, J. T. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0208007
4 pages, 3 eps-figures
arxiv created 2002/08/01 · openalex publication_date 2002/08/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the effects of gluon saturation on pion production in high energy proton-nucleus collisions using the color glass condensate model. At high pperp, we show that the pperp-distribution of gluons behaves as ~ 1/(pperp7) in accordance with both conventional perturbative QCD calculations and experiment. Fragmentation of gluons into pions leads to a rapidity dependent depletion of pions relative to the conventional perturbative QCD predictions. We argue that these clear and systematic differences provide a signal for the onset of gluon saturation which is accessible in upcoming experiments.