The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76TeV down to zero transverse momentum in the rapidity range 2.5<y<4. A suppression of the inclusive J/ψ yield in Pb-Pb is observed with respect to the one measured in pp collisions scaled by the number of binary nucleon-nucleon collisions. The nuclear modification factor, integrated over the 0%-80% most central collisions, is 0.545±0.032(stat)±0.083(syst) and does not exhibit a significant dependence on the collision centrality. These features appear significantly different from measurements at lower collision energies. Models including J/ψ production from charm quarks in a deconfined partonic phase can describe our data. © 2012 CERN.

J/ψ suppression at forward rapidity in Pb-Pb collisions at √sNN=2.76TeV

BRUNO, GIUSEPPE EUGENIO;CARMINATI, FLAVIO;COSTA, FIAMMETTA;DAS, KESHABANANDA;DI BARI, DEBORAH;FERRETTI, ANDREA;MULLER, HEIKO;PERINI, DAVIDE;ROY, PARTHA PRATIM;SANTORO, ROMUALDO;SEGATO, GINO;TOIA, ALESSIO;
2012-01-01

Abstract

The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76TeV down to zero transverse momentum in the rapidity range 2.5
2012
http://oai.aps.org/filefetch?identifier=10.1103/PhysRevLett.109.072301&component=fulltext&description=markup&format=xml
Physics and Astronomy (all)
Abelev, B; Adam, J.; Adamová, D.; Adare, A. M.; Aggarwal, M. M.; Aglieri Rinella, G.; Agocs, A. G.; Agostinelli, A.; Aguilar Salazar, S.; Ahammed, Z.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2062305
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