Publication
Title
Search for supersymmetry in final states with a single electron or muon using angular correlations and heavy-object identification in proton-proton collisions at √s=13 TeV
Author
Institution/Organisation
CMS Collaboration
Abstract
A search for supersymmetry is presented in events with a single charged lepton, electron or muon, and multiple hadronic jets. The data correspond to an integrated luminosity of 138 fb(-1) of proton-proton collisions at a center-of-mass energy of 13TeV, recorded by the CMS experiment at the CERN LHC. The search targets gluino pair production, where the gluinos decay into final states with the lightest supersymmetric particle (LSP) and either a top quark-antiquark (t (t) over bar) pair, or a light-flavor quark-antiquark (q (q) over bar) pair and a virtual or on-shell W boson. The main backgrounds, t (t) over bar pair and W+jets production, are suppressed by requirements on the azimuthal angle between the momenta of the lepton and of its reconstructed parent W boson candidate, and by top quark and W boson identification based on a machine-learning technique. The number of observed events is consistent with the expectations from standard model processes. Limits are evaluated on supersymmetric particle masses in the context of two simplified models of gluino pair production. Exclusions for gluino masses reach up to 2120 (2050) GeV at 95% confidence level for a model with gluino decay to a t (t) over bar pair (a q (q) over bar pair and a W boson) and the LSP. For the same models, limits on the mass of the LSP reach up to 1250 (1070) GeV.
Language
English
Source (journal)
Journal of high energy physics. - Bristol
Publication
Bristol : 2023
ISSN
1126-6708
1029-8479 [online]
DOI
10.1007/JHEP09(2023)149
Volume/pages
9 (2023) , p. 1-58
Article Reference
149
ISI
001091130800001
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
AMVA4NewPhysics: Advanced Multi-Variate Analysis for New Physics Searches at the LHC
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 04.12.2023
Last edited 08.12.2023
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