Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector
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 collect...
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_14346044_v76_n5_p_Aad |
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| Sumario: | 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. |
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