J/ψ and ψ(2S) production in p-Pb collisions with ALICE at the LHC

Leoncino, M. and Agócs, András and Barnaföldi, Gergely Gábor and Bencédi, Gyula and Berényi, Dániel and Boldizsár, László and Dénes, Ervin and Hamar, Gergő and Kiss, Gábor and Lévai, Péter and Oláh, László and Pochybova, Sona (2014) J/ψ and ψ(2S) production in p-Pb collisions with ALICE at the LHC. POS - PROCEEDINGS OF SCIENCE, 212. ISSN 1824-8039

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Abstract

The ALICE collaboration has studied the inclusive J/ψ and ψ(2S) production in p-Pb collisions at √sNN = 5.02 TeV at the CERN LHC. The J/ψ measurement is performed in the μ+μ− ( - 4.46 < ycms < - 2.96 and 2.03 < ycms < 3.53 ) and in the e+e− ( - 1.37 < ycms < 0.46 ) decay channels, down to zero transverse momentum. The results are in fair agreement with theoretical predictions based on nuclear shadowing, as well as with models including, in addition, a contribution from partonic energy loss. Finally, the ψ(2S) measurement in the μ+μ− decay channel has been performed. In particular, a significantly smaller ψ(2S) nuclear modification factor, with respect to the J/ψ one, has been observed.

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