Search for supersymmetry in events with four or more leptons in = 8 TeV pp collisions with the ATLAS detector
CERN-LHC. 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 fb^{-1} of proton-proton collisions delivered by the Large Hadron Collider at sqrt(s) = 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.
- Research Organization:
- USDOE Office of Science (SC) (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- The ATLAS collaboration
- OSTI ID:
- 1893337
- Country of Publication:
- United States
- Language:
- English
Search for supersymmetry in events with four or more leptons in collisions with the ATLAS detector
|
journal | September 2014 |
Search for supersymmetry in events with four or more leptons in collisions with the ATLAS detector
|
journal | September 2014 |
Similar Records
Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in 8TeV collisions with the ATLAS detector
Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using TeV proton--proton collision data