Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ATLAS detector
Phys.Lett. B707 (2012) 330-348, 2012.
The collaboration

Abstract (data abstract)
CERN-LHC. Experimental measurements of Elliptic Flow, v2(pT), as a function of pT for eight 10% centrality intervals (from 0-10% most central to 70-80% most peripheral), for pT from 0.5 to 20 GeV, and for three ranges in pseudorapidity (|eta| < 1, 1 < |eta| < 2 and 2 < |eta| < 2.5) (Tables 1-24). In addition, data points of pseudorapidity dependence of elliptic flow, v2(eta), in five pT intervals and eight 10% centrality intervals are presented (Tables 25-64). The elliptic flow parameter (v2) is measured as the second harmonic of the Fourier analysis of the azimuthal angle distribution relative to the azimuthal angle of the reaction plane. For more details see the paper.