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 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
Centralised submission by Collaboration Presenter name already specified
Collaboration ALICE

Primary author

Presentation materials