NUK - logo
E-viri
  • Suppression and azimuthal a...
    Khachatryan, V.; Besançon, M.; Couderc, F.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J.L.; Favaro, C.; Ferri, F.; Ganjour, S.; Ghosh, S.; Givernaud, A.; Gras, P.; Monchenault, G. Hamel De; Jarry, P.; Kucher, I.; Locci, E.; Machet, M.; Malcles, J.; Rander, J.; Rosowsky, A.; Titov, M.; Zghiche, A.; Abdulsalam, A.; Antropov, I.; Baffioni, S.; Beaudette, F.; Busson, P.; Cadamuro, L.; Chapon, E.; Charlot, C.; Davignon, O.; Cassagnac, R. Granier De; Jo, M.; Lisniak, S.; Miné, P.; Nguyen, M.; Ochando, C.; Ortona, G.; Paganini, P.; Pigard, P.; Regnard, S.; Salerno, R.; Sirois, Y.; Strebler, T.; Yilmaz, Y.; Zabi, A.; Agram, J.-L.; Andrea, J.; Aubin, A.; Bloch, D.; Brom, J.-M.; Buttignol, M.; Chabert, E.C.; Chanon, N.; Collard, C.; Conte, E.; Coubez, X.; Fontaine, J.-C.; Gelé, D.; Goerlach, U.; Bihan, A.-C. Le; Skovpen, K.; Hove, P. Van; Gadrat, S.; Beauceron, S.; Bernet, C.; Boudoul, G.; Bouvier, E.; Montoya, C.A. Carrillo; Chierici, R.; Contardo, D.; Courbon, B.; Depasse, P.; Mamouni, H. El; Fan, J.; Fay, J.; Gascon, S.; Gouzevitch, M.; Grenier, G.; Ille, B.; Lagarde, Fabienne; Laktineh, I.B.; Lethuillier, M.; Mirabito, L.; Pequegnot, A.L.; Perries, S.; Popov, A.; Sabes, D.; Sordini, V.; Donckt, M. Vander; Verdier, P.; Viret, S.

    The European physical journal. C, Particles and fields, 2017, Letnik: 77
    Journal Article

    The nuclear modification factor RAA and the azimuthal anisotropy coefficient v2 of prompt and nonprompt (i.e. those from decays of b hadrons) J/psi mesons, measured from PbPb and pp collisions at sqrt(sNN)=2.76 TeV at the LHC, are reported. The results are presented in several event centrality intervals and several kinematic regions, for transverse momenta pt>6.5 GeV/c and rapidity abs(y)<2.4, extending down to pt=3 GeV/c in the 1.6<abs(y)<2.4 range. The v2 of prompt J/psi is found to be nonzero and constant over the full kinematic range studied, while the measured v2 of nonprompt J/psi is consistent with zero. The RAA of prompt J/psi exhibits a suppression that increases with centrality but does not vary as a function of either y or pt in the fiducial range. The nonprompt J/psi RAA shows a suppression which becomes stronger as rapidity or pt increase. The v2 and nuclear suppression of open and hidden charm, and of open charm and beauty, are compared.