# Resonance production in high energy collisions from small to big systems

## TL;DR

This paper investigates how resonance and particle production vary across different collision systems at the LHC, analyzing yields and ratios versus multiplicity to understand system size effects.

## Contribution

It provides a comparative analysis of particle production across pp, pA, and AA collisions using a unified multiplicity measure, revealing system size dependence.

## Key findings

- Particle yields vary with system size and multiplicity.
- Different particles show distinct dependence on system size.
- Analysis suggests underlying mechanisms of particle production change with system scale.

## Abstract

The aim of this paper is to understand resonance production (and more generally particle production) for different collision systems, namely proton-proton (pp), proton-nucleus (pA), and nucleus-nucleus (AA) scattering at the LHC. We will investigate in particular particle yields and ratios versus multiplicity, using the same multiplicity definition for the three different systems, in order to analyse in a compact way the evolution of particle production with the system size and the origin of a very different system size dependence of the different particles.