# Quark Matter 2018

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

## Quarkonium production in p-A collisions with ALICE

May 16, 2018, 4:50 PM
20m
Sala Mosaici-2, 3rd Floor (Palazzo del Casinò)

### Sala Mosaici-2, 3rd Floor

#### Palazzo del Casinò

Parallel Talk Quarkonia

### Speaker

Dr Biswarup Paul (Universita e INFN Torino (IT))

### Description

The study of quarkonium production in proton-nucleus collisions is an important tool to investigate cold nuclear matter (CNM) effects. Mechanisms such as the modification of the parton distribution functions in nuclei, the presence of a color glass condensate or coherent energy loss of the $c\overline{c}$ pair in the medium have been employed to describe J/$\psi$ production in proton-nucleus collisions at LHC energies. In addition, final state mechanisms, possibly related to the presence of a dense medium, are required to explain the stronger suppression observed for the loosely bound $\psi$(2S) state.

ALICE has measured quarkonium production in p-Pb collisions at backward ($-$4.46 $<$ $y_{\rm cms}$ $<$ $-$2.96), mid ($-$1.37 $<$ $y_{\rm cms}$ $<$ 0.43) and forward (2.03 $<$ $y_{\rm cms}$ $<$ 3.53) rapidity down to zero transverse momentum ($p_{\rm T}$). Results on J/$\psi$ nuclear modification factor ($R_{\rm pPb}$) measured at mid-$y$ at $\sqrt{s_{\rm NN}}$ = 5.02 TeV and at forward and backward $y$ at $\sqrt{s_{\rm NN}}$ = 8.16 TeV will be presented. J/$\psi$ production as a function of multiplicity and results on the J/$\psi$ $v_{2}$, obtained using J/$\psi$-hadron correlations, will also be discussed. Finally, we will present the results on $\psi$(2S) and $\Upsilon$ $R_{\rm pPb}$ in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 TeV at forward and backward $y$. All the results will be compared to those obtained at lower energies and with available theoretical calculations.

Content type Experiment Presenter name already specified ALICE