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D meson elliptic flow in non-central Pb-Pb collisions at sqrts(s_NN) = 2.76TeV

Abstract : Azimuthally anisotropic distributions of D0, D+ and D*+ mesons were studied in the central rapidity region (|y|<0.8) in Pb-Pb collisions at a centre-of-mass energy sqrts(s_NN) = 2.76TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient v2 (commonly denoted elliptic flow) was measured in the centrality class 30-50% as a function of the D meson transverse momentum pt, in the range 2-16GeV/c$. The measured v2 of D mesons is comparable in magnitude to that of light-flavour hadrons. It is positive in the range 2 < pt < 6 GeV/c with 5.7 sigma significance, based on the combination of statistical and systematic uncertainties.
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http://hal.in2p3.fr/in2p3-00822069
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Submitted on : Tuesday, May 14, 2013 - 8:39:21 AM
Last modification on : Sunday, June 26, 2022 - 11:58:48 AM

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B. Abelev, Laurent Aphecetche, Guillaume Batigne, I. Belikov, A.A.E. Bergognon, et al.. D meson elliptic flow in non-central Pb-Pb collisions at sqrts(s_NN) = 2.76TeV. Physical Review Letters, American Physical Society, 2013, 111, pp.102301. ⟨10.1103/PhysRevLett.111.102301⟩. ⟨in2p3-00822069⟩

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