Gluon saturation in dijet production in p-Pb collisions at Large Hadron Collider

Abstract

We study saturation effects in the production of dijets in p-p and p-Pb collisions using the framework of high energy factorization. We focus on central-forward jet configurations, which allow for probing gluon density at low longitudinal momentum fraction. We find significant suppression of the central-forward jet decorrelations in p-Pb compared to p-p, which we attribute to saturation of gluon density in nuclei.

Comments: 16 pages, 8 figures; v2: minor textual changes, reference added; v3: extra paragraph and figure for RHIC, several clarifying sentences and references added, version accepted by PRD