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Article
Report number arXiv:1303.5880 ; CERN-PH-EP-2013-042 ; CERN-PH-EP-2013-042
Title J/ψ Elliptic Flow in Pb-Pb Collisions at sNN=2.76 TeV
Author(s) ALICE Collaboration  Show all 980 authors
Publication 2013-10-17
Imprint 14 Mar 2013
Number of pages 11
Note Comments: 16 pages, 4 figures, 1 Table, authors from page 11 to 13
16 pages, 4 captioned figures, 1 Table, authors from page 11, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/591
In: Phys. Rev. Lett. 111 (2013) 162301
DOI 10.1103/PhysRevLett.111.162301
Subject category Particle Physics - Experiment ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Free keywords experimental results ; heavy ion collisions ; elliptic flow ; J/psi
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 < y < 4.0. The dependence of the J/ψv2 on the collision centrality and on the J/ψ transverse momentum is studied in the range 0 pT<10 GeV/c. For semi-central Pb-Pb collisions at sNN = 2.76 TeV, an indication of non-zero v2 is observed with a maximum value of v2 = 0.116 ± 0.046(stat.) ± 0.029(syst.) for J/ψ in the transverse momentum range 2 pT< 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.
Copyright/License publication: © 2013-2025 CERN (License: CC-BY-3.0)
preprint: © 2013-2025 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: barbara.erazmus@cern.ch


 Record created 2013-03-14, last modified 2025-01-06


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