Centrality, rapidity and transverse momentum dependence of J/ψ suppression in Pb-Pb collisions at √sNN= 2.76TeV
Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Langøy, Rune; Lien, Jørgen; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Skjerdal, Kyrre; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Eyyubova, Gyulnara; Lindal, Svein; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agocs, Andreas Gabor; Agostinelli, Andrea; Ahammed, Zubayer; Ahmad, Nazeer; Ahmad Masoodi, Arshar; Ahn, Sang Un; Ahn, Sul-Ah; Ajaz, Muhammad; Akindinov, Alexander; Aleksandrov, Dimitry; Alessandro, Bruno; Alici, Andrea; Alkin, Anton; ALICE Collaboration
Journal article, Peer reviewed
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Original versionPhysics Letters B. 2014, 734 314-327. 10.1016/j.physletb.2014.05.064
The inclusive [?] nuclear modification factor ([?]) in Pb–Pb collisions at root snn=2.76 TeV has been measured by ALICE as a function of centrality in the e+e- decay channel at mid-rapidity ([?]) and as a function of centrality, transverse momentum and rapidity in the [?] decay channel at forward-rapidity ([?]). The yields measured in Pb–Pb are suppressed compared to those in pp collisions scaled by the number of binary collisions. The [?] integrated over a centrality range corresponding to 90% of the inelastic Pb–Pb cross section is [?] at mid-rapidity and [?] at forward-rapidity. At low transverse momentum, significantly larger values of [?] are measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the [?] yield originates from charm quark (re)combination in the deconfined partonic medium.