Inclusive J/ψ production is studied in p–Pb interactions at a centre-of-mass energy per nucleon–nucleon collision √sNN = 8.16 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, via its decay to a muon pair, in the centre-of-mass rapidity intervals 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96, where positive and negative ycms refer to the p-going and Pb-going direction, respectively. The transverse momentum coverage is pT < 20 GeV/c. In this paper, ycms- and pT-differential cross sections for inclusive J/ψ production are presented, and the corresponding nuclear modification factors RpPb are shown. Forward results show a suppression of the J/ψ yield with respect to pp collisions, concentrated in the region pT . 5 GeV/c. At backward rapidity no significant suppression is observed. The results are compared to previous measurements by ALICE in p–Pb collisions at √sNN = 5.02 TeV and to theoretical calculations. Finally, the ratios RFB between forward- and backward-ycms RpPb values are shown and discussed.
|Original language||English (US)|
|State||Published - May 11 2018|
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