2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/214925In this note, we discuss the problem of quark-antiquark pair production in the framework of the color glass condensate. The cross-section can be calculated in closed form for the case of proton-nucleus collisions, where the proton can be considered to be a dilute object. We find that kt-factorization is broken by rescattering effects.6 pages, 3 figures, based on talks given at Hard Probes 2004 by H. Fujii and F. GelisHigh Energy Physics - Phenomenologytext