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

Li Yan (1) , Jean-Yves Ollitrault (1) , Art M. Poskanzer (2)

1 IPHT - Institut de Physique Théorique - UMR CNRS 3681
2 LBNL - Lawrence Berkeley National Laboratory [Berkeley]

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.

Keywords: Heavy-ion collisions; fluctuations; anisotropic flow

Domains: Nuclear Theory [nucl-th]; High Energy Physics - Phenomenology [hep-ph]; Nuclear Experiment [nucl-ex]

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, 2014, 2014 (09), pp.021. ⟨10.1016/j.nuclphysa.2014.09.021⟩. ⟨cea-01323762⟩