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Search for anomalous production of prompt same-sign lepton pairs and pair-produced doubly charged Higgs bosons with √s = 8 TeV pp collisions using the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
A low-background inclusive search for new physics in events with same-sign dileptons is presented. The search uses proton-proton collisions corresponding to 20.3 fb[superscript −1] of integrated luminosity taken in 2012 at a centre-of-mass energy of 8 TeV with the ATLAS detector at the LHC. Pairs of isolated leptons with the same electric charge and large transverse momenta of the type e [superscript ±] e [superscript ±], e [superscript ±] μ [superscript ±], and μ [superscript ±] μ [superscript ±] are selected and their invariant mass distribution is examined. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the cross-sections for processes beyond the Standard Model. Limits are placed as a function of the dilepton invariant mass within a fiducial region corresponding to the signal event selection criteria. Exclusion limits are also derived for a specific model of doubly charged Higgs boson production.
Date issued
2015-03
URI
http://hdl.handle.net/1721.1/96813
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Search for Anomalous Production of Prompt Same-Sign Lepton Pairs and Pair-Produced Doubly Charged Higgs Bosons with √s = 8 TeV pp Collisions Using the ATLAS Detector.” J. High Energ. Phys. 2015, no. 3 (March 2015). © 2015 CERN, for the benefit of the ATLAS Collaboration
Version: Final published version
ISSN
1029-8479

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