CERN Accelerating science

Article
Report number arXiv:2405.05048 ; CERN-EP-2024-105
Title Underlying-event studies with strange hadrons in pppp collisions at s=13s=13 TeV with the ATLAS detector
Author(s) ATLAS Collaboration  2940 人のオーサーを表示
Corporate Author(s) ATLAS Collaboration
Publication 2024-12-29
Imprint 08 May 2024
Number of pages 42
Note 42 pages in total, author list starting page 25, 7 figures, 1 table, submitted to EPJC. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2018-60
In: Eur. Phys. J. C 84 (2024) 1335
DOI 10.1140/epjc/s10052-024-13243-1
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords QCD ; global features ; heavy quark production ; experimental results ; Underlying event ; Strange hadrons
Abstract Properties of the underlying-event in pppp interactions are investigated primarily via the strange hadrons K0SK0S, ΛΛ and ˉΛ¯Λ, as reconstructed using the ATLAS detector at the LHC in minimum-bias pppp collision data at s=13s=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes K0Sπ+πK0Sπ+π, ΛπpΛπp and ˉΛπ+ˉp¯Λπ+¯p. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10<pT4010<pT40 GeV are studied using the number of prompt charged particles in the transverse region. The ratio N(Λπp±)/N(K0Sπ+π)N(Λπp±)/N(K0Sπ+π) as a function of the number of such charged particles varies only slightly over this range. This disagrees with the expectations of some of the considered Monte Carlo models.
Related document
Copyright/License Preprint: © 2024-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: tatjana.lenz@cern.ch


 レコード 生成: 2024-05-08, 最終変更: 2025-01-10


フルテキスト:
2405.05048 - Download fulltextPDF
document - Download fulltextPDF
External link:
Download fulltextPrevious draft version
  • Send to ScienceWise.info