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Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector

Author(s)
Taylor, Frank E
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Abstract
This article presents the sensitivity of the ATLAS experiment to the lepton-flavour-violating decays of τ→3μ. A method utilising the production of τ leptons via W→τν decays is used. This method is applied to the sample of 20.3 fb [superscript −1] of pp collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the LHC in 2012. No event is observed passing the selection criteria, and the observed (expected) upper limit on the ττ lepton branching fraction into three muons, Br(τ→3μ), is 3.76×10[superscript −7] ( 3.94×10[superscript −7]) at 90 % confidence level.
Date issued
2016-04
URI
http://hdl.handle.net/1721.1/108445
Department
Massachusetts Institute of Technology. Department of Physics
Journal
European Physical Journal C
Publisher
Springer-Verlag
Citation
Atlas Collaboration et al. “Probing Lepton Flavour Violation via Neutrinoless τ ⟶ 3 μ Decays with the ATLAS Detector.” The European Physical Journal C 76.5 (2016): n. pag. © 2016 CERN for the benefit of the ATLAS collaboration
Version: Final published version
ISSN
1434-6044
1434-6052

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