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Scientific article
Open access
English

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 1404, p. 169-215
Collection
  • Open Access - SCOAP3
Publication date2014
Abstract

A search for the direct production of charginos and neutralinos in final states with three leptons and missing transverse momentum is presented. The analysis is based on 20.3 fb −1 of √s = 8 TeV proton-proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with the Standard Model expectations and limits are set in R -parity-conserving phenomenological Minimal Supersymmetric Standard Models and in simplified supersymmetric models, significantly extending previous results. For simplified supersymmetric models of direct chargino $ \left( {\widetilde{\chi}_1^{\pm }} \right) $ and next-to-lightest neutralino $ \left( {\widetilde{\chi}_2^0} \right) $ production with decays to lightest neutralino $ \left( {\widetilde{\chi}_1^0} \right) $ via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, $ \left( {\widetilde{\chi}_1^{\pm }} \right) $ and $ \left( {\widetilde{\chi}_2^0} \right) $ masses are excluded up to 700 GeV, 380 GeV, 345 GeV, or 148 GeV respectively, for a massless $ \left( {\widetilde{\chi}_1^0} \right) $ .

Keywords
  • Hadron-Hadron Scattering
Citation (ISO format)
ATLAS Collaboration. Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector. In: The journal of high energy physics, 2014, vol. 1404, p. 169–215. doi: 10.1007/JHEP04(2014)169
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Article (Published version)
Identifiers
ISSN of the journal1029-8479
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