Speaker
Frederique Grassi
(Universidade de São Paulo-Brazil)
Description
Hydro simulations are compared with recent experimental data by CMS, on a Principle Component Analysis. The trends for the scaled leading and sub-leading components for n=2,3 agree with data. In contrast, for n=0 there is a qualitative disagreement: the leading component increases with $p_T$ while it is constant in data. Using a toy model where the principal components can be computed analytically, it is shown that the n=0 leading and sub-leading components are extremely dependent on fluctuations in $N$ and $\bar{p_T}$ as well as their covariance and provide a new and clean way to study fluctuations and rule out initial condition models.
Authors
Prof.
Fernando Gardim
(Universidade Federal de Alfenas-Brazil)
Frederique Grassi
(Universidade de São Paulo-Brazil)
Jean-Yves Ollitrault
(Université Paris-Saclay)
Dr
Matthew Luzum
(Universidade de Sao Paulo)
Mr
Pedro Ishida
(Universidade de São Paulo)
