Two-particle Azimuthal correlations are measured with the ALICE apparatus in pp collisions at √s = 13 TeV to explore strangeness- and multiplicity-related effects in the fragmentation of jets and the transition regime between bulk and hard production, probed with the condition that a strange meson (KS 0) or baryon () with transverse momentum pT > 3 GeV/c is produced. Azimuthal correlations between kaons or hyperons with other hadrons are presented at midrapidity for a broad range of the trigger (3 < p trigg T < 20 GeV/c) and associated particle pT (1 GeV/c < passoc T < p trigg T ), for minimum-bias events and as a function of the event multiplicity. The near- and away-side peak yields are compared for the case of either KS 0 or () being the trigger particle with that of inclusive hadrons (a sample dominated by pions). In addition, the measurements are compared with predictions from PYTHIA 8 and EPOS LHC event generators.

K-S(0)- and (anti-)Lambda-hadron correlations in pp collisions at root s=13 TeV

De Falco, A.;Fionda, F. M.;Usai, G. L.;
2021-01-01

Abstract

Two-particle Azimuthal correlations are measured with the ALICE apparatus in pp collisions at √s = 13 TeV to explore strangeness- and multiplicity-related effects in the fragmentation of jets and the transition regime between bulk and hard production, probed with the condition that a strange meson (KS 0) or baryon () with transverse momentum pT > 3 GeV/c is produced. Azimuthal correlations between kaons or hyperons with other hadrons are presented at midrapidity for a broad range of the trigger (3 < p trigg T < 20 GeV/c) and associated particle pT (1 GeV/c < passoc T < p trigg T ), for minimum-bias events and as a function of the event multiplicity. The near- and away-side peak yields are compared for the case of either KS 0 or () being the trigger particle with that of inclusive hadrons (a sample dominated by pions). In addition, the measurements are compared with predictions from PYTHIA 8 and EPOS LHC event generators.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/334879
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