Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in √s = 8 TeV pp collisions with the ATLAS detector
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Aad-2015-Search for direct pa.pdf
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2.64 MB
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ca119c9a930bef0d84a30a9fc489410e
Author(s)
Taylor, Frank E.
Date Issued
May 2015
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Direct Pair Production of a Chargino and a Neutralino Decaying to the 125 GeV Higgs Boson in √s = 8 TeV pp Collisions with the ATLAS Detector.” The European Physical Journal C 75, no. 5 (May 2015). © 2015 CERN for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
A search is presented for the direct pair production of a chargino and a neutralino pp → [~ over χ][± over 1][~ over χ][0 over 2], where the chargino decays to the lightest neutralino and the W boson, [~ over χ][± over 1] → [~ over χ][0 over 1](W[superscript ±] → ℓ[superscript ±]ν), while the neutralino decays to the lightest neutralino and the 125 GeV Higgs boson, [~ over χ][0 over 2] → [~ over χ][0 over 1](h → bb/γγ/ℓ[superscript ±]νqq). The final states considered for the search have large missing transverse momentum, an isolated electron or muon, and one of the following: either two jets identified as originating from bottom quarks, or two photons, or a second electron or muon with the same electric charge. The analysis is based on 20.3 fb[superscript −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 the context of a simplified supersymmetric model.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-015-3408-7
