Speaker
Frederique Grassi
Description
Hydrodynamic simulations together with models for the fluctuating initial
conditions lead to a good description of experimental data on all flow
harmonics. To complement these analyses which allow to constrain initial
fluctuations, one can use rapidity-odd directed flow to unravel the global initial geometry.
We discuss what properties of the tilt of the initial state is necessary to
reproduce data on v1(y) and v1(b). We argue that skewness
(asymmetry in the transverse overlap region) of the initial state is needed to reproduce data on v1(pt). We conclude by computing tilt and skewness of various initial conditions and showing which are consistent with data on rapidity-odd directed flow.
Primary author
Frederique Grassi
Co-authors
Fernando Gardim
(USP)
Dr
Jean-Yves Ollitrault
(CNRS)
