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Report number arXiv:2011.05898 ; CERN-EP-2020-210
Title Jet-associated deuteron production in pp collisions at s=13 TeV
Related titleJet-associated deuteron production in pp collisions at s=13 TeV
Author(s) ALICE Collaboration  1006 人のオーサーを表示
Corporate author(s) The ALICE collaboration
Publication 2021-06-08
Imprint 03 Nov 2020
Number of pages 11
Note 18 pages, 3 captioned figures, 2 tables, authors from page 13, published version, figures at http://alice-publications.web.cern.ch/node/6692
Published in: Phys. Lett. B 819 (2021) 136440
DOI 10.1016/j.physletb.2021.136440
Subject category Nuclear Physics - Experiment ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Keywords QCD ; relativistic heavy ion physics ; quark gluon plasma ; hard scattering ; particle and resonance production ; particle correlations and fluctuations ; jet physics ; experimental results
Abstract Deuteron production in high-energy collisions is sensitive to the space-time evolution of the collision system, and is typically described by a coalescence mechanism. For the first time, we present results on jet-associated deuteron production in pp collisions at s=13 TeV, providing an opportunity to test the established picture for deuteron production in events with a hard scattering. Using a trigger particle with high transverse-momentum (pT>5 GeV/c) as a proxy for the presence of a jet at mid-rapidity, we observe a measurable population of deuterons being produced around the jet proxy. The associated deuteron yield measured in a narrow angular range around the trigger particle differs by 23 standard deviations from the uncorrelated background. The data are described by PYTHIA model calculations featuring baryon coalescence.
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Copyright/License publication: © 2021-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2020-2025 CERN (License: CC-BY-4.0)
Submitted by javier.castillo.castellanos@cern.ch



 


 レコード 生成: 2020-11-03, 最終変更: 2025-01-14


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