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

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The ALICE Collaboration , Acharya , S , Adamova , D , Kim , D J , Krizek , F , Molander , M A , Novitzky , N , Onnerstad , A , Parkkila , J E , Rytkönen , H M , Räsänen , S , Saarimäki , O A M , Slupecki , M & Trzaska , W H 2021 , ' K-S(0)- and (anti-)Lambda-hadron correlations in pp collisions at root s=13 TeV ' , European Physical Journal C. Particles and Fields , vol. 81 , no. 10 , 945 . https://doi.org/10.1140/epjc/s10052-021-09678-5

Title: K-S(0)- and (anti-)Lambda-hadron correlations in pp collisions at root s=13 TeV
Author: The ALICE collaboration; Acharya, S.; Adamova, D.; Kim, D. J.; Krizek, F.; Molander, Mikael Andreas; Novitzky, Norbert; Onnerstad, A.; Parkkila, J. E.; Rytkönen, Heidi Maria; Räsänen, Sami; Saarimäki, Oskari Antti Matti; Slupecki, M.; Trzaska, W. H.
Contributor: University of Helsinki, University of Jyväskylä
University of Helsinki, The Czech Academy of Sciences
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Tsukuba
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
Date: 2021-10-25
Language: eng
Number of pages: 21
Belongs to series: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
URI: http://hdl.handle.net/10138/336562
Abstract: Two-particle Azimuthal correlations are measured with the ALICE apparatus in pp collisions at root 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 (K-S(0)) or baryon (Lambda) with transverse momentum p(T) > 3 GeV/c is produced. Azimuthal correlations between kaons or Lambda hyperons with other hadrons are presented at midrapidity for a broad range of the trigger (3 < p(T)(trigg) < 20 GeV/c) and associated particle p(T) (1 GeV/c < p(T)(assoc) < p(T)(trigg)), 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 K-S(0) or Lambda((Lambda) over bar) 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.
Subject: 114 Physical sciences
GLUON JETS
COLLECTIVITY
MULTIPLICITY
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