Strangeness Production in Jets and Underlying Events in pp Collisions at $\sqrt{s}$ = 13 TeV with ALICE

TL;DR

This paper measures strange hadron production in jets and underlying events in proton-proton collisions at 13 TeV with ALICE, providing insights into strangeness production mechanisms in small systems.

Contribution

It presents the first detailed measurements of $ m K^0_S$, $ m \Lambda$, and $ m \Xi$ production in jets and underlying events at 13 TeV, exploring strangeness enhancement.

Findings

Strange hadron ratios vary with transverse momentum.

Jet-associated production differs from underlying event.

Results help distinguish soft and hard process contributions.

Abstract

The production of $\mathrm{K^0_S}$, $\Lambda$ and $\Xi$ is measured in jets and underlying events in pp collisions at $\sqrt{s}$ = 13 TeV with ALICE detectors. The corresponding $\Lambda/\mathrm{K^0_S}$ and $\Xi/\Lambda$ ratios are presented as a function of transverse momentum. The hard scatterings are tagged by charged-particle jets ,which are reconstructed with the anti-$k_\mathrm{T}$ algorithm using a resolution parameter $R$ = 0.4. The flow-like correlations and the enhanced production of multi-strange hadrons in small colliding systems may be described by soft components.