Speaker
Description
The influence of initial state fluctuations on elliptic e2 and triangular e3 eccentricities and on elliptic v2 and triangular v3 flows in relativistic heavy ion collisions is studied within three Monte Carlo models. The models are based on (i) number of participant nucleons, (ii) number of binary collisions, and (iii) partonic energy density in color glass condensate (CGC) phase, respectively. We show that both, e2 and v2, weakly depend on the fluctuations except for the collisions with centrality 0-2%. In contrast, e3 and v3 are mostly determined by the initial state fluctuations. Obtained results reproduce the nontrivial centrality dependence of the ratio of flow components, v2/v3, measured in LHC experiments. For these very central collisions, a novel scaling dependence of the anisotropic flow harmonics vn on atomic number A of colliding nuclei is predicted. Namely, vn ~ A^{-1/3}. This prediction agrees well with the available experimental data.
References:
[1] G. Eyyubova, V. Korotkikh, A. Snigirev, E. Zabrodin, J. Phys. G 48 (2021) 095101
