Cronin effect and energy conservation constraints in pA collisions at LHC and RHIC

Abstract

We evaluate the Cronin effect in pA collisions at the CERN LHC and at RHIC in the framework of Glauber-Eikonal model of initial state multiparton interactions. Taking carefully into account all kinematical constraints of each multi-parton interaction process we obtain a softening of the spectrum of produced partons, improving in this way the agreement of the model with the recent measurements of pi0 production in d+Au collisions at sqrt{s}=200 AGeV.

Comments: Proceeding of 34th International Symposium on Multiparticle dynamics (ISMD), Sonoma California, 26th-1st Aug 2004, to be published in Acta Phisica Polonica B