Speaker
Dr
Seyed Farid Taghavi
(school of particles and accelerators, institute for research in fundamental sciences, Tehran, Iran)
Description
Both collision geometry and event-by-event fluctuations are encoded in the experimentally observed flow harmonic distribution $p(v_n)$ and 2k-particle cumulants $c_n\{2k\}$. In the present talk, we systematically connect these observables to each other by employing Gram-Charlier A series. Also we quantify the deviation of the flow harmonic distribution from Bessel-Gaussianity in terms of the flow harmonic fine-splitting. This study helps us to disentangle the effect of the collision geometry and fluctuations in $v_n\{2k\}$. After that we introduce two applications for this study. We first introduce several estimators for the averaged ellipticity and second we restrict the $v_2\{2\}$, $v_2\{4\}$ and $v_2\{8\}$ phase space.
Authors
Dr
Seyed Farid Taghavi
(school of particles and accelerators, institute for research in fundamental sciences, Tehran, Iran)
Mr
Hadi Mehrabpour
(Sharif University of Technology and Institute For Research in Fundamental Sciences)