Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector
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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.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||European Physical Journal C|
|Publication status||Published - 2016|
Cited By :1 Export Date: 16 June 2017