Strangeness production in $O+O$ collisions at $\sqrt{s_{\mathrm{NN}}}=7$ TeV using various model approaches

TL;DR

This paper compares predictions of strange and multi-strange hadron production in oxygen-oxygen collisions at 7 TeV using EPOS4 and AMPT models, highlighting differences in radial flow and multiplicity overlaps across collision systems.

Contribution

It provides a comparative analysis of two models' predictions for strange hadron observables in small and large collision systems at high energy.

Findings

EPOS4 indicates stronger radial flow than AMPT.

Final state multiplicity overlaps across different collision systems.

Predictions include transverse momentum spectra and yield ratios.

Abstract

We present the predictions of various observables for strange ($\mathrm{K}^{0}_{\mathrm S}$, $\Lambda$($\overline{\Lambda}$)) and multi-strange hadrons ($\Xi^-$($\overline{\Xi}^+$), $\phi$, and $\Omega^-$($\overline{\Omega}^+$)) using the recently updated 3+1D hydrodynamics-based EPOS4 framework and AMPT model. In this study, we report the transverse momentum (${p_{\rm T}}$) spectra, particle yields (${\mathrm{d}N/\mathrm{d}y}$), and ${p_{\rm T}}$ integrated yield ratios relative to pions for $O+O$ collisions at $\sqrt{s_{\mathrm{NN}}}=7$~TeV. The results reveal that there are indications of stronger radial flow in EPOS4 compared to AMPT. We observe a final state multiplicity overlap with small ($p+p$ and $p+Pb$) and large ($Pb+Pb$) collision systems.