Quarkonium production in pp and p-A collisions with ALICE at the LHC
Laboratoire de Physique Subatomique et des Technologies Associees SUBATECH. 4 Rue Alfred Kastler, 44300 Nantes, France
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Published online: 2 February 2018
Quarkonia are mesons formed of either a charm and anti-charm quark pair (J/ψ, ψ(2S)) or a beauty and anti-beauty quark pair (ϒ(1S), (2S) and (3S)). We report on forward rapidity (2:5 < y < 4) J/ψ and ψ(2S) production measured in pp collisions at √s = 13 TeV, using data collected at the LHC in 2015. The results will be compared with similar measurements performed at √s = 2.76, 5.02, 7 and 8 TeV. They will be further compared to NRQCD and FONLL calculations, which describe prompt and non-prompt charmonium production respectively. Results of the J/ψ nuclear modification factor as a function of collision centrality in p–Pb collisions at = 8.16 TeV, at forward and backward rapidities, will also be presented. These measurements will be compared with Run-1 (2009 – 2013) results as well as theoretical calculations and will be interpreted in terms of cold nuclear matter effects.
© The Authors, published by EDP Sciences, 2018
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