High energy pA collisions in the color glass condensate approach II: quark pair production

By J. Blaizot, F. Gelis, R. Venugopalan. 2004

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Abstract We compute the production of quark–antiquark pairs in high energy collisions between a small and a large projectile, as in proton–nucleus collisions, in the framework of the color glass condensate. We derive a general expression for quark pair-production, which is not k ⊥ -factorizable. However, k ⊥ -factorization is recovered in the limit of large mass pairs or large quark–antiquark momenta. Our results are amenable to a simple interpretation and suggest how multi-parton correlations at small x can be quantified in high-energy proton/deuteron–nucleus collisions.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/9d6556986f67fbcf2fef0223651e166e0eb7fcee