D-meson elliptic flow with event shape engineering (TH, EXP)

by Andrea Beraudo (INFN, sezione di Torino (IT)), Andrea Festanti (CERN)

Thursday 21 Feb 2019, 11:00 → 13:00 Europe/Zurich

4/2-011 - TH common room (CERN)

The evolution of the system created in heavy-ion collisions is sensitive to the initial geometry of the system. The Event-Shape Engineering technique allows the selection of events according to the initial geometrical shape of the interaction region. It is based on the observation of large event-by-event variation of the anisotropic flow coefficients at fixed centrality, and on the correlation between the initial spatial anisotropy of the collision and the elliptic flow of final state particles. 
This technique provides a tool to investigate the interplay between the anisotropic flow of heavy quarks and that of the bulk matter created in heavy-ion collisions. In particular, it is used to investigate the correlation between the flow coefficients of D mesons and soft hadrons. In addition, it could provide insights on how the fluctuations in the initial geometry of the system affect the path-length-dependent energy loss experienced by the heavy quarks in the QGP.
Recent theoretical and experimental results on D-meson elliptic flow studied with Event-Shape Engineering will be discussed.

Event-shape engineering and heavy-flavourobservables in relativistic heavy-ion collisions

Event-Shape Engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at √sNN=5.02 TeV