Rescattering effects on resonances production in small systems with ALICE at the LHC

TL;DR

This paper investigates how rescattering affects resonance production in small systems like pp and p--Pb collisions at the LHC, providing insights into collective phenomena and the hadronic phase.

Contribution

It presents new ALICE measurements of resonance yields and their multiplicity dependence in small collision systems, comparing results with theoretical models.

Findings

Resonance yields vary with event multiplicity.

Evidence of hadronic phase effects in small systems.

Comparison with models highlights mechanisms influencing resonance production.

Abstract

Recent multiplicity-dependent analyses of pp and p--Pb collision data have revealed that particle production shares similar features with that in heavy-ion collisions. Studies using resonances could help to understand the possible onset of collective-like phenomena and the presence of a hadronic phase in small collision systems. Measurements of the differential yields of resonances with different lifetime, mass, quark content, and quantum numbers could enable understanding the mechanisms that influence the shape of particle momentum spectra, lifetime of the hadronic phase, strangeness production, parton energy loss, and collective effects. New ALICE results on various hadronic resonances in small collision systems at Large Hadron Collider (LHC) energies, including the multiplicity dependence measurements of $\Lambda$(1520) and K$^*$(892)$^{\pm}$ and the production of $\phi$-meson pairs are presented here. Results will be also compared with model calculations.