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Report number arXiv:1405.5086 ; CERN-PH-EP-2014-074 ; CERN-PH-EP-2014-074
Title Search for supersymmetry in events with four or more leptons in ss = 8 TeV pp collisions with the ATLAS detector
Related titleSearch for supersymmetry in events with four or more leptons in ss = 8 TeV pp collisions with the ATLAS detector
Author(s) ATLAS Collaboration  Afficher les 2876 auteurs
Publication 2014-09-04
Imprint 20 May 2014
Number of pages 33
Note Comments: 21 pages plus author list+cover page (34 pages total), 11 figures, 10 tables, submitted to Phys. Rev. D. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-13/
21 pages plus author list+cover page (34 pages total), 11 figures, 10 tables, submitted to Phys. Rev. D. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-13/
In: Phys. Rev. D 90 (2014) 052001
DOI 10.1103/PhysRevD.90.052001
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords supersymmetry ; experimental results
Abstract Results from a search for supersymmetry in events with four or more leptons including electrons, muons and taus are presented. The analysis uses a data sample corresponding to 20.3 fb1fb1 of proton--proton collisions delivered by the Large Hadron Collider at ss = 8 TeV and recorded by the ATLAS detector. Signal regions are designed to target supersymmetric scenarios that can be either enriched in or depleted of events involving the production of a Z boson. No significant deviations are observed in data from Standard Model predictions and results are used to set upper limits on the event yields from processes beyond the Standard Model. Exclusion limits at the 95\% confidence level on the masses of relevant supersymmetric particles are obtained. In R-parity-violating simplified models with decays of the lightest supersymmetric particle to electrons and muons, limits of 1350 GeV and 750 GeV are placed on gluino and chargino masses, respectively. In R-parity-conserving simplified models with heavy neutralinos decaying to a massless lightest supersymmetric particle, heavy neutralino masses up to 620 GeV are excluded. Limits are also placed on other supersymmetric scenarios.
Copyright/License preprint: © 2014-2025 CERN (License: CC-BY-3.0)
publication: © 2014-2025 CERN (License: CC-BY-4.0)



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Email contact: ATLAS-publication-committee-chair@cern.ch


 Notice créée le 2014-05-20, modifiée le 2024-03-14


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