We report on the first measurement of inclusive J/ψ elliptic flow v2 in heavy-ion collisions at the LHC. The measurement is performed with the ALICE detector in Pb-Pb collisions at √sNN=2.76 TeV in the rapidity range 2.5<y<4.0. The dependence of the J/ψ v2 on the collision centrality and on the J/ψ transverse momentum is studied in the range 0≤pT<10 GeV/c. For semicentral Pb-Pb collisions at √sNN=2.76 TeV, an indication of nonzero v2 is observed with a largest measured value of v2=0.116±0.046(stat) ±0.029(syst) for J/ψ in the transverse momentum range 2≤p T<4 GeV/c. The elliptic flow measurement complements the previously reported ALICE results on the inclusive J/ψ nuclear modification factor and favors the scenario of a significant fraction of J/ψ production from charm quarks in a deconfined partonic phase.

E. Abbas, B. Abelev, J. Adam, D. Adamová, A. M. Adare, M. M. Aggarwal, et al. (2013). J/ψ Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV. PHYSICAL REVIEW LETTERS, 111(16), 1-11 [10.1103/PhysRevLett.111.162301].

J/ψ Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;FALCHIERI, DAVIDE;GUERZONI, BARBARA;SCIOLI, GILDA;
2013

Abstract

We report on the first measurement of inclusive J/ψ elliptic flow v2 in heavy-ion collisions at the LHC. The measurement is performed with the ALICE detector in Pb-Pb collisions at √sNN=2.76 TeV in the rapidity range 2.5
2013
E. Abbas, B. Abelev, J. Adam, D. Adamová, A. M. Adare, M. M. Aggarwal, et al. (2013). J/ψ Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV. PHYSICAL REVIEW LETTERS, 111(16), 1-11 [10.1103/PhysRevLett.111.162301].
E. Abbas;B. Abelev;J. Adam;D. Adamová;A. M. Adare;M. M. Aggarwal;G. Aglieri Rinella;M. Agnello;A. G. Agocs;A. Agostinelli;Z. Ahammed;N. Ahmad;A. Ahmad...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/388121
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