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

G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, M. Abolins, Mogens Dam, Jørn Dines Hansen, Jørgen Beck Hansen, Stefania Xella, Peter Henrik Hansen, Troels Christian Petersen, Lotte Ansgaard Thomsen, Sascha Mehlhase, Morten Dam Jørgensen, Gorm Aske Gram Krohn Galster, Almut Maria Pingel, Ask Emil Løvschall-JensenAlejandro Alonso Diaz, James William Monk, Lars Egholm Pedersen, Graig Wiglesworth

129 Citations (Scopus)

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 vs = 8TeV 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 (∼X±1) and next-to-lightest neutralino (X∼0 2) production with decays to lightest neutralino (∼X0 1) via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, ∼X± 1 and ∼X0 2 masses are excluded up to 700GeV, 380GeV, 345GeV, or 148GeV respectively, for a massless ∼X0 1.

Original languageEnglish
Article number1404
JournalJournal of High Energy Physics (Online)
Volume2014
Issue number169
ISSN1126-6708
DOIs
Publication statusPublished - Apr 2014

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