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Universal parameterization of initial-state fluctuations and its applications to event-by-event anisotropy

Abstract : We propose Elliptic Power and Power parameterizations for the probability distribution of initial state anisotropies in heavy-ion collisions. By assuming a linear eccentricity scaling, the new parameterizations can also be applied to fluctuations of harmonic flow. In particular, we analyze flow multi-particle cumulants and event-by-event distributions, both of which are recently measured at the LHC.
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Li Yan, Jean-Yves Ollitrault, Art M. Poskanzer. Universal parameterization of initial-state fluctuations and its applications to event-by-event anisotropy. Nuclear Physics A, Elsevier, 2014, 2014 (09), pp.021. ⟨10.1016/j.nuclphysa.2014.09.021⟩. ⟨cea-01323762⟩

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