# 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!

## Suppression of charmonia states in Pb+Pb collisions at 5.02 TeV with the ATLAS detector

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

Poster Quarkonia

### Speaker

Sebastian Tapia Araya (Federico Santa Maria Technical University (CL))

### Description

The suppression of heavy quarkonia states in heavy-ion collisions is a phenomenon understood as a consequence of QGP formation in the hot, dense system produced in high-energy heavy ion collisions. A full assessment of the physics scenario requires a detailed study of effects present in Pb+Pb, in comparison to $pp$ collisions. Using Pb+Pb data collected in 2015 at the LHC by the ATLAS experiment at $\sqrt{s_{_\mathrm{NN}}}$=5.02 TeV we have studied prompt and non-prompt $J/\psi$ and $\psi(2S)$ productions via their di-muon decay channel. In this poster, ATLAS will present in detail how the separation of prompt and non-prompt signal is performed, as well as the description of the systematic uncertainties and technical details of the yield and suppression measurements.

Content type Experiment ATLAS Presenter name already specified

### Primary authors

Barbara Krystyna Wosiek (Institute of Nuclear Physics Polish Academy of Sciences (PL)) Sebastian Tapia Araya (Federico Santa Maria Technical University (CL))