Quarkonium production in p-Pb collisions with ALICE

Abstract

ALICE has measured quarkonium production in p-Pb collisions at backward (−4.46 < ycms < −2.96), mid (−1.37 < ycms < 0.43) and forward (2.03 < ycms < 3.53) rapidity (y) regions down to zero transverse momentum (pT). The inclusive J/ψ production has been studied at mid-y in p-Pb interactions at √sNN = 5.02 TeV and at forward and backward y in p-Pb collisions at √sNN = 5.02 TeV and 8.16 TeV. The comparison of the J/ψ production to the one of the loosely bound ψ(2S) state is discussed, together with new results on the nuclear modification factors of the Υ(1S) and Υ(2S) states measured at forward and backward y. All the results will be compared to those obtained at lower energies and with available theoretical calculations.