D meson elliptic flow in non-central Pb-Pb collisions at sqrts(s_NN) = 2.76TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review Letters Year : 2013

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

B. Abelev
  • Function : Author
Laurent Aphecetche
Guillaume Batigne
B. Cheynis
B. Erazmus
  • Function : Author
  • PersonId : 1178907
  • IdRef : 033726485
Magali Estienne
Marie Germain
Maxime Guilbaud
Gines Martinez Garcia
Philippe Pillot
C. Roy
Diego Stocco

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.

Dates and versions

in2p3-00822069 , version 1 (14-05-2013)

Identifiers

Cite

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, 2013, 111, pp.102301. ⟨10.1103/PhysRevLett.111.102301⟩. ⟨in2p3-00822069⟩
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