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

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Abstract

This article presents the sensitivity of theATLAS 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−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 τ lepton branching fraction into three muons,Br(τ → 3μ),is 3.76 × 10−7 (3.94 × 10−7) at 90 % confidence level. © CERN for the benefit of the ATLAS collaboration 2016.

Details

Authors
Organisations
External organisations
  • Academia Sinica
  • Aix-Marseille University
  • University of Oklahoma
  • Institute of Physics Azerbaijan National Academy of Sciences
  • University of Amsterdam
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number232
JournalEuropean Physical Journal C
Volume76
Issue number5
Publication statusPublished - 2016
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

Cited By :1 Export Date: 16 June 2017