2002/11/30 by Adrian Dumitru, L. Gerland, Lars Gerland +2 · 1 citation
Physics and Astronomy · #Baryon #Gluon #Hadron #High-Energy Particle Collisions Research #Kinetic energy #Light cone #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #hep-ex #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.90.092301
published as Phys.Rev.Lett. 90 (2003) 092301; Erratum-ibid. 91 (2003) 259901 · 5 pages, 2 figures, RevTeX; slightly revised version to appear in PRL
arxiv created 2003/01/17 · openalex publication_date 2003/03/06 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We argue that the distribution of hadrons near the longitudinal light cone in central high-energy pA collisions is computable in weak coupling QCD. This is because the density of gluons per unit transverse area in the dense target at saturation provides an intrinsic semihard momentum scale, Q(s). We predict that the longitudinal distribution of (anti)baryons and mesons steepens with increasing energy and atomic number of the target and that the transverse momentum distribution broadens. We show that the evolution of high moments of the longitudinal net baryon distribution with Q(s) is determined by the anomalous dimension gamma(qq).