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dc.contributor.authorKarasu Uysal, Ayben
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2019-07-05T11:21:00Z
dc.date.available2019-07-05T11:21:00Z
dc.date.issued2014
dc.identifier.urihttps://hdl.handle.net/20.500.12498/501
dc.description.abstractThe ALICE Collaboration has studied the inclusive production of the char- monium state ψ(2S) in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed at forward (2.03 < ycms < 3.53) and backward (−4.46 < ycms < −2.96) centre of mass rapidities, studying the decays into muon pairs. In this paper, we present the inclusive production cross sections σψ(2S), both integrated and as a function of the transverse momentum pT, for the two ycms domains. The results are compared to those obtained for the 1S vector state (J/ψ), by showing the ratios between the production cross sections, as well as the double ratios [σψ(2S)/σJ/ψ]pPb/[σψ(2S)/σJ/ψ]pp between p-Pb and proton-proton collisions. Finally, the nuclear modification factor for inclusive ψ(2S) is evaluated and compared to the measurement of the same quantity for J/ψ and to theoretical models including parton shadowing and coherent energy loss mechanisms. The results show a significantly larger suppression of the ψ(2S) compared to that measured for J/ψ and to models. These obser- vations represent a clear indication for sizeable final state effects on ψ(2S) production.en_US
dc.relationhttps://doi.org/10.1007/JHEP12(2014)073en_US
dc.subjectALICE, LHC, Charmen_US
dc.titleSuppression of ψ(2S) production in p-Pb collisions at √sNN = 5.02 TeVen_US
dc.typeArticleen_US
eperson.orcidid0000-0001-6297-2532en_US


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