Saturation and forward jets in proton-lead collisions at the LHC

Abstract

We investigate the forward-jet energy spectrum within the color glass condensate framework at 5 TeV center-of-mass energy. In particular, we focus on the kinematic range covered by the CMS-CASTOR calorimeter. We show that our saturation-model calculations are compatible with the CASTOR measurements and that to optimally reproduce the data, effects of multiparton interactions need to be included. We predict a significant nuclear suppression-reaching down to 50% at the lowest considered jet energies E-jet similar to 500 GeV.