Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

Summary, in English

Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0, Λ and Λ¯, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at s=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes, Λ→π-p and Λ¯→π+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

• Author: G. Aad; T.P.A. Åkesson; K.S.V. Astrand; C. Doglioni; P.A. Ekman; V. Hedberg; H. Herde; B. Konya; E. Lytken; R. Poettgen; N.D. Simpson; O. Smirnova; E.J. Wallin; L. Zwalinski
• Department/s: Particle and nuclear physics; Department of Physics; eSSENCE: The e-Science Collaboration
• Publishing year: 2024
• Language: English
• Publication/Series: European Physical Journal C
• Volume: 84
• Issue: 12
• Links: http://dx.doi.org/10.1140/epjc/s10052-024-13243-1
• Document type: Journal article
• Publisher: Springer Nature
• Topic: Subatomic Physics
• Keywords: Charged particles; Fighter aircraft; Germanium compounds; Monte Carlo methods; Tellurium compounds; ATLAS detectors; Decay mode; Event studies; Hadronization; Kinematic range; Monte Carlo model; Particle jets; Physics modeling; Property; Two particles; Hadrons
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044