$\rm{J}/\psi$ production as a function of multiplicity in pp and p-Pb collisions with ALICE

TL;DR

This paper reports on ALICE measurements of how J/psi production varies with event multiplicity in proton-proton and proton-lead collisions, providing insights into particle production mechanisms at the parton level.

Contribution

It presents new multiplicity-dependent measurements of J/psi production in pp and p-Pb collisions and compares them across energies and with D mesons, including theoretical predictions.

Findings

J/psi production increases with multiplicity in both collision types.

Comparison with D mesons reveals similarities and differences in production mechanisms.

Results help constrain models of soft and hard particle production processes.

Abstract

The multiplicity dependence of charmed-particle production can unveil new information on processes taking part at the parton level and on the interplay of soft and hard production mechanisms in collisions of relativistic hadrons. In this contribution, we report on multiplicity-differential measurements of $\rm{J}/\psi$ in pp and p-Pb collisions studied by the ALICE Collaboration. Comparisons between measurements at different energies are drawn as well as comparisons with $\rm{D}$ mesons. We also discuss the comparison with different theoretical predictions.