RT Journal Article
T1 Centrality, rapidity and transverse momentum dependence of J/ψsuppression in Pb–Pb collisions at √sNN=2.76TeV
A1 ALICE Collaboration, 
A1 Armesto Pérez, Néstor
A1 González Ferreiro, Elena
A1 Pajares Vales, Carlos
A1 Salgado López, Carlos Alberto
K1 Relativistic heavy ion collisions
K1 Quark gluon plasma
K1 Quarkonium
K1 J/ψsuppression
K1 Experimental results
AB The inclusive J/ψnuclear modification factor (RAA) in Pb–Pb collisions at √sNN=2.76TeVhas 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/ψyields measured in Pb–Pb are suppressed compared to those in ppcollisions scaled by the number of binary collisions. The RAAintegrated 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 RAAare measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the J/ψyield originates from charm quark (re)combination in the deconfined partonic médium.
PB Elsevier
SN 0370-2693
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21979
UL http://hdl.handle.net/10347/21979
LA eng
NO Abelev, B., Adam, J., Adamova, D., Aggarwal, M. M., Rinella, G. A., Agnello, M., ... & Ahmad, N. (2014). Centrality, rapidity and transverse momentum dependence of J/ψ suppression in Pb–Pb collisions at √sNN= 2.76 TeV. Physics Letters B, 734, 314-327.
DS Minerva
RD 26 abr 2026