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Abstract
A search for the weak production of charginos and neutralinos decaying to a final state with three leptons (electrons or muons) and missing transverse momentum is presented. The analysis uses 2.06 fb(-1) of √[s]=7 TeV proton-proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with standard model expectations in two signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric and simplified models. For the simplified models, degenerate lightest chargino and next-to-lightest neutralino masses up to 300 GeV are excluded for mass differences from the lightest neutralino up to 300 GeV.
Highlights
A search for the weak production of charginos and neutralinos decaying to a final state with three loefpptoffisffin1⁄4s (e7leTcetrVonpsrootromn-uporontso)nancdolmlisiisosnindgattraadnesvlievresreedmboymtehnetuLmargise presented
Degenerate lightest chargino and next-to-lightest neutralino masses up to 300 GeV are excluded for mass differences from the lightest neutralino up to 300 GeV
In scenarios where first and second generation sfermion masses are larger than few TeVs, the direct production of weak gauginos may be the dominant SUSY process at the Large Hadron Collider (LHC)
Summary
A search for the weak production of charginos and neutralinos decaying to a final state with three loefpptoffisffin1⁄4s (e7leTcetrVonpsrootromn-uporontso)nancdolmlisiisosnindgattraadnesvlievresreedmboymtehnetuLmargise presented. This Letter presents the first search with the ATLAS detector for the weak production of charginos and neutralinos decaying to a final state with three leptons (electrons or muons) and missing transverse momentum.
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