Parton Distributions in Nuclei at Small x

2000/05/08 by Ina Sarčević, Ina Sarcevic, Sarcevic, Ina
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/0005062

Invited talk presented at the XXIX International Symposium on Multiparticle Dynamics, QCD and Multiparticle Dynamics, Providence, RI, August 9-13, 1999; 6 pages, PostScript, 4 color figures

arxiv created 2000/05/08 · openalex publication_date 2000/05/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the nuclear shadowing effect in the context of Glauber-Gribov multiple-scattering model and perturbative QCD. We find that at small x, the Q² evolution of the shadowing is much slower than the DGLAP evolution, due to the multiple scatterings at small x. We show that the gluon shadowing at small x and for Q² > 3GeV² is perturbative in nature and does not depend on the initial, non-perturbative condition. We evaluate the impact parameter dependence of the gluon distribution and show that it is a non-linear effect in the nuclear thickness function.

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