Fluctuations of anisotropic flow from the finite number of rescatterings in a two-dimensional massless transport model

Abstract

We investigate the fluctuations of anisotropic transverse flow due to the finite number of scatterings in a two-dimensional system of massless particles. Using a set of initial geometries from a Monte Carlo Glauber model, we study how flow coefficients fluctuate about their mean value at the corresponding eccentricity, for several values of the scattering cross section. We also show how the distributions of the second and third event planes of anisotropic flow about the corresponding participant plane in the initial geometry evolve as a function of the mean number of scatterings in the system.

v2: final version, 17 pages, 12 figures

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• Statistical analysis of initial state and final state response in heavy-ion collisions
• On differences between even and odd anisotropic-flow harmonics in non-equilibrated systems
• Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers
• Early time behavior of spatial and momentum anisotropies in a kinetic approach to nuclear collisions
• Collective flow in single-hit QCD kinetic theory
• Event-shaped-dependent cumulants in p-Pb collisions at 5.02 TeV