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dc.contributor.authorKARASU UYSAL, Ayben
dc.contributor.authorALICE Collaboration
dc.date.accessioned2019-07-08T07:42:06Z
dc.date.available2019-07-08T07:42:06Z
dc.date.issued2016
dc.identifier.urihttps://hdl.handle.net/20.500.12498/588
dc.description.abstractThe inclusive production of the ψ(2S) charmonium state was studied as a function of centrality in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed with the ALICE detec- tor in the center of mass rapidity ranges −4.46 < ycms < −2.96 and 2.03 < ycms < 3.53, down to zero transverse momentum, by reconstructing the ψ(2S) decay to a muon pair. The ψ(2S) production cross section σψ(2S) is presented as a function of the collision cen- trality, which is estimated through the energy deposited in forward rapidity calorime- ters. The relative strength of nuclear effects on the ψ(2S) and on the corresponding 1S charmonium state J/ψ is then studied by means of the double ratio of cross sections [σψ(2S)/σJ/ψ]pPb/[σψ(2S)/σJ/ψ]pp between p-Pb and pp collisions, and by the values of the nuclear modification factors for the two charmonium states. The results show a large suppression of ψ(2S) production relative to the J/ψ at backward (negative) rapidity, corre- sponding to the flight direction of the Pb-nucleus, while at forward (positive) rapidity the suppressions of the two states are comparable. Finally, comparisons to results from lower energy experiments and to available theoretical models are presented.en_US
dc.relation10.1007/JHEP06(2016)050en_US
dc.subjectHeavy Ion Experimentsen_US
dc.subjectQuark Gluon Plasma
dc.titleCentrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN = 5.02 TeVen_US
dc.typeMakaleen_US
eperson.orcidid0000-0001-6297-2532en_US


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