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arXiv · 1311.5339

Constraining models of initial conditions with elliptic and triangular flow data

Ekaterina Retinskaya·Matthew Luzum·Jean-Yves Ollitrault
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Abstract

We carry out a combined analysis of elliptic and triangular flow data using viscous relativistic hydrodynamics. We show that these data allow to put tight constraints on models of the early dynamics of a nucleus-nucleus collision. Specifically, the rms values of the initial ellipticity $\varepsilon_2$ and the initial triangularity $\varepsilon_3$ are constrained to lie within a narrow band for each centrality. We use these constraints as a filter for existing Monte-Carlo models of initial state, and provide a simple test that can be performed on any candidate model to determine its compatibility with data.

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Ekaterina Retinskaya, Matthew Luzum, Jean-Yves Ollitrault. 2014-01-09. Constraining models of initial conditions with elliptic and triangular flow data. https://doi.org/10.1103/physrevc.89.014902

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