Flow analysis from multiparticle azimuthal correlations - art. no. 054901

We present a new method for analyzing directed and elliptic flow in heavy-i on collisions. Unlike standard methods, it separates the contribution of fl ow to azimuthal correlations from contributions due to other effects. The s eparation relies on a cumulant expansion of multiparticle azimuthal correla tions, and includes corrections for detector inefficiencies. This new metho d allows the measurement of the flow of identified particles in narrow phas e-space regions, and can be used in every regime, from intermediate to ultr arelativistic energies.