# Quarkonium production as a function of charged-particle multiplicity in pp and p--Pb collisions measured by ALICE at the LHC

## TL;DR

This paper presents measurements of quarkonium production as a function of charged-particle multiplicity in proton-proton and proton-lead collisions at the LHC, providing insights into particle production mechanisms at the partonic level.

## Contribution

It provides new experimental data on J/ψ and Υ production correlated with charged-particle multiplicity in different collision systems and energies, advancing understanding of partonic interactions.

## Key findings

- Quarkonium yields increase with multiplicity in pp and p–Pb collisions.
- Results suggest multiple partonic interactions influence quarkonium production.
- Data at various energies and rapidities offer comprehensive insights.

## Abstract

Quarkonium production as a function of the charged-particle multiplicity could provide an insight into particle production processes at the partonic level in hadronic collisions. It is believed that multiple partonic interactions play an important role in particle production and affect both soft and hard processes. The study of correlations between quarkonia and charged-particle multiplicity may provide information about this. In this contribution, ALICE measurements of J$/\psi$ and $\Upsilon$ production as a function of charged-particle multiplicity are presented for pp collisions at center-of-mass energies $\sqrt{s}$ = 5.02 and 13 TeV. A similar measurement performed in p\textendash Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 8.16 TeV at both forward and backward rapidity is also discussed.