Charmonium production in pp, p—Pb and Pb—Pb collisions at forward rapidity with ALICE at the LHC
Résumé
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.
Mots clés
charmonium: hadroproduction
nuclear matter: effect
psi(3685): yield
rapidity
ALICE
recombination
CERN LHC Coll
regeneration
J/psi(3100): suppression
experimental results
2760 GeV-cms/nucleon
5020 GeV-cms/nucleon
7000 GeV-cms
talk: Dubna 2015/07/06
p p: scattering
p nucleus: interaction
heavy ion: scattering
lead