Speaker
Description
In this talk, we use the Boltzmann Equation in the Diffusion
Approximation (BEDA) as a tool to understand how the initial state
azimuthal anisotropies are washed out because of the final state
interactions. The interplay of $1\leftrightarrow 2$ and
$2\leftrightarrow 2$ interactions relax the initial anisotropies in a
characteristic manner. We observe how, for an initial anisotropy characterized by a single harmonic coefficient $v_n$, higher order harmonic coefficients can be produced. Also, for a peaked shape around
$p_T\approx Q_s$, as predicted by initial state calculations, the final
state interactions can shift the maximum towards the UV, as it has been
observed in experimental measurements. We also show how we can use this
approach to mimic the experimental data with a more phenomenological
simulation.