Show simple item record

dc.contributor.authorKarasu Uysal, Ayben
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2019-07-05T11:18:06Z
dc.date.available2019-07-05T11:18:06Z
dc.date.issued2014
dc.identifier.urihttps://hdl.handle.net/20.500.12498/498
dc.description.abstracthe inclusive J/ψ nuclear modification factor (RAA) in Pb–Pb collisions at √sNN = 2.76 TeV has been measured by ALICE as a function of centrality in the e+e− decay channel at mid-rapidity (|y| < 0.8) and as a function of centrality, transverse momentum and rapidity in the μ+μ− decay channel at forward-rapidity (2.5 < y < 4). The J/ψ yields measured in Pb–Pb are suppressed compared to those in pp collisions scaled by the number of binary collisions. The RAA integrated over a centrality range corresponding to 90% of the inelastic Pb–Pb cross section is 0.72 ± 0.06(stat.) ± 0.10(syst.) at mid-rapidity and 0.58 ± 0.01(stat.) ± 0.09(syst.) at forward-rapidity. At low transverse momentum, significantly larger values of RAA are measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the J/ψ yield originates from charm quark (re)combination in the deconfined partonic medium.en_US
dc.subjectRelativistic heavy ion collisions Quark gluon plasma Quarkonium J/ψ suppression Experimental resultsen_US
dc.titleCentrality, rapidity and transverse momentum dependence of J/ψ suppression in Pb–Pb collisions at sNN = 2.76 TeVen_US
dc.typeArticleen_US
eperson.orcidid0000-0001-6297-2532en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record