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

Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and The ATLAS Collaboration, (2014) 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, 4. p. 169. ISSN 1029-8479

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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 (χ~1±) and next-to-lightest neutralino (χ~20) production with decays to lightest neutralino (χ~10) via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, (χ~1±) and (χ~20) masses are excluded up to 700 GeV, 380 GeV, 345 GeV, or 148 GeV respectively, for a massless (χ~10).

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 14 Feb 2017 16:05
Last Modified: 16 Mar 2017 20:27
URI: http://sro.sussex.ac.uk/id/eprint/66749

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Project NameSussex Project NumberFunderFunder Ref
STFC Consolidated Grant SupplementG1316STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/M000753/1