Measurement of strange baryon production in charged-particle jets in pp and p-Pb collisions with ALICE

TL;DR

This paper investigates strange baryon production within jets in pp and p-Pb collisions, providing detailed measurements to understand the mechanisms behind strange hadron enhancement across different collision systems.

Contribution

It presents new measurements of strange hadron production in jets and the underlying event, including a novel analysis of in-jet fragmentation in pp collisions at 13.6 TeV.

Findings

Strange hadron production varies between jets and the underlying event.

Results contribute to understanding the mechanisms of strangeness enhancement.

New in-jet fragmentation data at 13.6 TeV from LHC Run 3.

Abstract

The enhancement of the ratio of strange to non-strange hadrons with increasing charged-particle multiplicity density is often interpreted as a signature of the medium formed in heavy-ion collisions. However, this effect has also been observed in smaller systems, such as pp and p-Pb collisions. Understanding this effect requires a detailed description of the production mechanisms of strange hadrons in and out of jets. In this manuscript are presented published results on the production of $\mathrm{K^{0}_{S}}$, $\Lambda (\bar\Lambda)$, $\Xi^\pm$ and $\Omega^\pm$ hadrons in charged-particle jets and the underlying event in pp and p-Pb collisions measured by ALICE. In addition, a new analysis of in-jet fragmentation into $\Lambda$ and $\mathrm{K^{0}_{S}}$ hadrons in pp collisions at $\sqrt{s} = 13.6$ TeV using LHC Run 3 data is shown.