Long-range angular correlations by strong color fields in hadronic collisions

Abstract

I present an overview of the ridge phenomenon in proton-proton and proton-lead collisions. This novel collimation between rapidity separated hadron pairs is a consequence of non-linear gluon dynamics within the small-x wave-function of the colliding hadrons.

Comments: To appear in the proceedings of the 48th Rencontres de Moriond: QCD and Hadronic Interactions, La Thuile, Italy, 9-16 Mar 2013