Quark production in high energy proton-nucleus collisions

Abstract

In 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.

Comments: 6 pages, 3 figures, based on talks given at Hard Probes 2004 by H. Fujii and F. Gelis