Hadronic resonance production and interaction in p-Pb collisions at LHC energies in EPOS3

TL;DR

This paper uses the EPOS3 model with UrQMD to analyze how short-lived hadronic resonances are produced and modified in p-Pb collisions at LHC energies, revealing a short-lived hadronic phase that influences resonance yields and spectra.

Contribution

It introduces a detailed study of resonance production and medium effects in p-Pb collisions, highlighting the presence of a hadronic phase affecting particle yields and spectra.

Findings

Resonance yields are modified by hadronic interactions.

Similar behavior observed in high-multiplicity p-Pb and mid-peripheral Pb-Pb collisions.

Evidence of a short-lived hadronic phase in p-Pb collisions.

Abstract

Using the EPOS3 model with UrQMD to describe the hadronic phase, we study the production of short-lived hadronic resonances and the modification of their yields and $p_{T}$ spectra in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV. High-multiplicity p-Pb collisions exhibit similar behavior to mid-peripheral Pb-Pb collisions at LHC energies, and we find indications of a short-lived hadronic phase in p-Pb collisions that can modify resonance yields and $p_{T}$ spectra through scattering processes. The evolution of resonance production is investigated as a function of the system size, which is related to the lifetime of the hadronic phase, in order to study the onset of collective effects in p-Pb collisions. We also study hadron production separately in the core and corona parts of these collisions, and explore how this division affects the total particle yields as the system size increases.