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Flow analysis from multiparticle azimuthal correlations

par Borghini, Nicolas ;Dinh, Phuong Mai;Ollitrault, Jean-Yves
Référence Physical review. C. Nuclear physics, 64, 5, page (549011-5490123)
Publication Publié, 2001-11

Article révisé par les pairs

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Résumé :

We present a new method for analyzing directed and elliptic flow in heavy-ion collisions. Unlike standard methods, it separates the contribution of flow to azimuthal correlations from contributions due to other effects. The separation relies on a cumulant expansion of multiparticle azimuthal correlations, and includes corrections for detector inefficiencies. This new method allows the measurement of the flow of identified particles in narrow phase-space regions, and can be used in every regime, from intermediate to ultrarelativistic energies.