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Article
Report number arXiv:2011.10543 ; CERN-EP-2020-201
Title Search for trilepton resonances from chargino and neutralino pair production in s=13 TeV pp collisions with the ATLAS detector
Author(s) ATLAS Collaboration  Visualizza tutti i 3091 autori
Corporate Author(s) ATLAS Collaboration
Publication 2021-06-07
Imprint 23 Nov 2020
Number of pages 51
Note 51 pages in total, author list starting page 35, 9 figures, 4 tables, submitted to Physical Review D. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2018-36
In: Phys. Rev. D 103 (2021) 112003
DOI 10.1103/PhysRevD.103.112003
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry ; particle and resonance production ; experimental results
Abstract A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an R-parity-violating coupling into a lepton and a W,Z, or Higgs boson. The trilepton invariant-mass spectrum is constructed from events with three or more leptons, targeting chargino decays that include an electron or muon and a leptonically decaying Z boson. The analyzed dataset corresponds to an integrated luminosity of 139 fb1 of proton-proton collision data produced by the Large Hadron Collider at a center-of-mass energy of s=13 TeV and collected by the ATLAS experiment between 2015 and 2018. The data are found to be consistent with predictions from the Standard Model. The results are interpreted as limits at 95% confidence level on model-independent cross sections for processes beyond the Standard Model. Limits are also set on the production of charginos and neutralinos for a Minimal Supersymmetric Standard Model with an approximate BL symmetry. Charginos and neutralinos with masses between 100 GeV and 1100 GeV are excluded depending on the assumed decay branching fractions into a lepton (electron, muon, or τ-lepton) plus a boson (W, Z, or Higgs).
Related document supersedes: ATLAS-CONF-2020-009
Copyright/License publication: © 2021-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2020-2025 CERN (License: CC-BY-4.0)



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


 Record creato 2020-11-23, modificato l'ultima volta il 2024-12-13


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