Charmonium production in pp, p—Pb and Pb—Pb collisions at forward rapidity with ALICE at the LHC

This contribution presents recent ALICE measurements on charmonium production at forward rapidity in pp collisions at √s = 7 TeV, p-Pb at √sNN = 5.02 TeV and Pb-Pb at √sNN = 2.76 TeV. The charmonium production cross sections in pp collisions are in good agreement with calculations within the NRQCD approach. The comparison between J/Ψ and Ψ(2S) yields in p-Pb collisions indicates the presence of Cold Nuclear Matter effects on charmomium production in the final state. In Pb-Pb collisions the measured J/Ψ suppression is in agreement with models that introduce J/Ψ regeneration mechanisms through the recombination of cc̅ pairs produced in the medium