# Quark Matter 2018

13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

## J/psi polarization in Pb-Pb collisions at sqrt(sNN) = 5.02 TeV with ALICE at the LHC

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

Poster Quarkonia

### Speaker

Luca Micheletti (Universita e INFN Torino (IT))

### Description

Polarization is a key observable to determine the quarkonium production mechanism in hadronic elementary collisions. Its very small value measured at the LHC has been challenging the commonly-used theoretical models and it still represents a major standing issue in the field.
On the other hand, phenomenological studies have shown that primordial quarkonium in AA interaction can be polarized by the strong magnetic field generated by the two colliding nuclei, while re-combined quarkonium is expected to be completely unpolarized.
We present a feasibility study for the pT-differential measurement of J/psi polarization in $\sqrt{s_{NN}}$ = 5.02 TeV Pb-Pb collisions at the LHC. The analysis strategy and technique are discussed and first preliminary results are presented.

Centralised submission by Collaboration Presenter name already specified Experiment ALICE

### Primary author

Luca Micheletti (Universita e INFN Torino (IT))