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

0433119 - FZÚ 2015 RIV US eng J - Journal Article
Aad, G. - Abajyan, T. - Abbott, B. - Böhm, Jan - Chudoba, Jiří - Havránek, Miroslav - Hejbal, Jiří - Jakoubek, Tomáš - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Myška, Miroslav - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Vrba, Václav … Total 2894 authors
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.
Journal of High Energy Physics. Roč. 2014, č. 4 (2014), s. 1-46. ISSN 1029-8479. E-ISSN 1029-8479
R&D Projects: GA MŠMT(CZ) LG13009
Institutional support: RVO:68378271
Keywords : final state * (3lepton) * ATLAS * minimal supersymmetric standard model * CERN LHC Coll * sparticle * decay modes
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 6.111, year: 2014

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 sqrt(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 (χ~±1) and next-to-lightest neutralino (χ~02) production with decays to lightest neutralino (χ~01) via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, χ~±1 and χ~02 masses are excluded up to 700 GeV, 380 GeV, 345 GeV, or 148 GeV respectively, for a massless χ~01.
Permanent Link: http://hdl.handle.net/11104/0237388