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Title: Search for trilepton resonances from chargino and neutralino pair production in s = 13 TeV pp collisions with the ATLAS detector
Authors: Aad, G.
Veloso, F. 
ATLAS Collaboration
Keywords: High Energy Physics-Experiment
Issue Date: 20-Nov-2020
Publisher: American Physical Society
Serial title, monograph or event: Physical Review D
Volume: 103
Issue: 11
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 fb-1 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 $B$-$L$ 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 t-lepton) plus a boson (W, Z, or Higgs).
Description: 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
ISSN: 2470-0010
DOI: 10.1103/PhysRevD.103.112003
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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