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



Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Aben, R, Abolins, M, AbouZeid, OS, Abramowicz, H, Abreu, H, Abreu, R
et al (show 2857 more authors) (2016) Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector EUROPEAN PHYSICAL JOURNAL C, 76 (5). 232-. ISSN 1434-6044, 1434-6052

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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.

Item Type: Article
Additional Information: 21 pages plus author list + cover pages (39 pages total), 6 figures, 2 tables, submitted to EPJC, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2014-14/
Uncontrolled Keywords: Atlas Collaboration, Atlas Collaboration, Atlas Collaboration
Depositing User: Symplectic Admin
Date Deposited: 21 Feb 2017 14:31
Last Modified: 24 Jun 2026 17:10
DOI: 10.1140/epjc/s10052-016-4041-9
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3005948
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