Abstract

Inclusive J/Ψ production has been studied with the ALICE detector in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02TeV at the CERN LHC. The measurement is performed in the center of mass rapidity domains 2.03 < ycms < 3.53 and ?4.46 < ycms < ?2.96, down to zero transverse momentum, studying the μ+μ? decay mode. In this paper, the J/Ψ production cross section and the nuclear modification factor RpPb for the rapidities under study are presented. While at forward rapidity, corresponding to the proton direction, a suppression of the J/Ψ yield with respect to binary-scaled pp collisions is observed, in the backward region no suppression is present. The ratio of the forward and backward yields is also measured differentially in rapidity and transverse momentum. Theoretical predictions based on nuclear shadowing, as well as on models including, in addition, a contribution from partonic energy loss, are in fair agreement with the experimental results.

Original languageEnglish
Article number073
Number of pages26
JournalJournal of High Energy Physics
Volume2014
Issue number2
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Charm physics
  • Heavy Ions
  • Relativistic heavy ion physics

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