Measurement of anisotropic flow coefficients in Pb-Pb collisions at √sNN=2.76 TeV by the CMS experiment

We present azimuthal anisotropy in Pb-Pb collisions at root s(NN) = 2.76 TeV measured by the CMS experiment. Several methods were employed to extract the strength of the signal: the event-plane, cumulant and Lee-Yang zeros methods. These methods typically have different sensitivity to non-flow correlations and flow fluctuations. The second Fourier coefficient v(2) of the charged hadron azimuthal distributions was extracted as a function of transverse momentum, pseudorapidity and centrality in a broad kinematic range: 0.3 < p(T) < 12.0 GeV/c and vertical bar eta vertical bar < 2.4). The p(T) and centrality dependence of the higher-order flow harmonics nu(3), nu(4), nu(5) are presented and discussed.