Production of strange particles in charged jets in Pb--Pb and p--Pb collisions measured with ALICE

TL;DR

This paper presents measurements of strange particle spectra within charged jets in Pb--Pb and p--Pb collisions at the LHC, providing insights into hadronisation mechanisms in hot dense media.

Contribution

It reports the first detailed spectra of strange baryons and mesons in jets in heavy-ion collisions, comparing them with inclusive particle ratios to understand hadronisation.

Findings

Strange particle spectra in jets differ from inclusive spectra.

Baryon-to-meson ratios in jets vary with collision centrality.

Results shed light on hadronisation in quark-gluon plasma.

Abstract

Measurements of spectra of identified particles produced in jets represent an important tool for understanding the interplay of various hadronisation mechanisms which contribute to particle production in the hot and dense medium created in ultra-relativistic heavy-ion collisions. In this contribution, we present the measurements of the pT spectra of {\Lambda} baryons and K0S mesons produced in charged jets in Pb--Pb collisions at sqrt(sNN) = 2.76 TeV and in p--Pb collisions at sqrt(sNN) = 5.02 TeV. The results are obtained with the ALICE detector at the LHC, exploiting the excellent particle identification capabilities of this experiment. Baryon-to-meson ratios of the spectra of strange particles associated with jets are studied in central collisions and are compared with the inclusive ratios.