Multiparticle azimuthal correlations |
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Authors: | N Borghini P M Dinh J Y Ollitrault |
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Institution: | (1) Service de Physique Théorique CP225, Université Libre de Bruxelles, 1050 Brussels, Belgium;(2) Service de Physique Théorique CEA-Saclay, 91191 Gif-sur-Yvette Cedex, France |
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Abstract: | First observations of elliptic flow in Au-Au collisions at RHIC have been interpreted as evidence that the colliding system
reaches thermal equilibrium. We discuss some of the arguments leading to this conclusion and show that a more accurate analysis
is needed, which the standard flow analysis may not provide. We then present a new method of flow analysis, based on a systematic
study of multiparticle azimuthal correlations. This method allows one to test quantitatively the collective behaviour of the
interacting system. It has recently been applied by the STAR Collaboration at RHIC. |
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Keywords: | Heavy-ion collisions elliptic flow correlations cumulants |
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