TY  - CHART
AU  - ALICE Collaboration
TI  - Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations
M1  - GSI-2026-00063
PY  - 2024
N1  - Journal Article GSI record: GSI-2026-00062
AB  - First measurements of hadron(h)-Λ azimuthal angular correlations in p-Pb collisions at √{s<sub>\textNN</sub>} = 5.02 TeV using the ALICE detector at the LHC are presented. These correlations are used to separate the production of associated Λ baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near-side), those produced in the opposite direction (away-side), and those whose production is uncorrelated with the jet-axis (underlying event). The per-trigger associated Λ yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle p<sub>\textT</sub> and event multiplicity. Comparisons with the DPMJET event generator and previous measurements of the ϕ(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in the jet-like regions, as well as the underlying event. The production of Λ relative to charged hadrons is also enhanced in the underlying event when compared to the jet-like regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event.
LB  - PUB:(DE-HGF)32
DO  - DOI:10.17182/HEPDATA.156383.V1
UR  - https://repository.gsi.de/record/363857
ER  -