Strangeness production with respect to high momentum hadrons in pp and p-Pb collisions with ALICE at the LHC

TL;DR

This paper investigates the production of strange hadrons in proton-proton and proton-lead collisions at the LHC by analyzing particle correlations to understand the underlying mechanisms of strangeness generation in high-energy collisions.

Contribution

It presents new correlation measurements involving strange hadrons in pp and p-Pb collisions, providing insights into fragmentation and underlying event contributions to strangeness production.

Findings

K0s-h correlations in pp at 13 TeV analyzed

h-phi correlations in p-Pb at 5.02 TeV studied

Results shed light on fragmentation and underlying event processes

Abstract

In order to understand strangeness production mechanisms, one can study the correlations of hadrons with hidden strangeness (e.g. the $\phi$ meson) and open strangeness ($\mathrm{K}^{0}_{\mathrm{S}}$, $\Lambda$ and $\bar{\Lambda}$) in hard (jet) processes and in soft (bulk) processes. Two-particle angular correlations with $\mathrm{K}^{0}_{\mathrm{S}}$ triggers allow for the study of fragmentation in pp collisions as a function of multiplicity. Similarly, correlations with associated $\phi$ mesons in p-Pb collisions allow both the jet and the underlying event components of strange particle production to be probed. Presented are $\mathrm{K}^{0}_{\mathrm{S}}$-h correlations measured by ALICE in pp collisions at $\sqrt{s} = 13$ TeV, and h-$\phi$ correlations measured in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV.