Open heavy flavour and quarkonium production as a function of the multiplicity in pp and p-Pb collisions with ALICE at the LHC

TL;DR

This paper investigates how the production of open heavy-flavour hadrons and quarkonium varies with event multiplicity in pp and p-Pb collisions at the LHC, providing insights into particle production mechanisms.

Contribution

It presents new measurements of D-meson and J/ψ yields as a function of multiplicity in pp and p-Pb collisions, comparing results to theoretical models.

Findings

Yields increase with multiplicity in both collision types

Results support models with multiple parton interactions

Data help distinguish between different particle production mechanisms

Abstract

Due to the large masses of beauty and charm quarks, their production cross sections can be computed in the framework of perturbative Quantum Chromodynamics. The correlation of quarkonium and open heavy-flavour hadron yields with charged particles produced in proton-proton (pp) and proton-lead (p-Pb) collisions can shed light on the interplay between hard and soft mechanisms in particle production. In this proceeding the results from D-meson and J/$\psi$ yields as a function of the charged-particle multiplicity in pp and p-Pb collisions are presented. Comparisons to theoretical models are also discussed.