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Probing lepton flavour violation via neutrinoless t?3µ decays with the ATLAS detector

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journal contribution
posted on 2023-06-09, 05:44 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS Collaboration
This article presents the sensitivity of the ATLAS experiment to the lepton-flavour-violating decays of t?3µ. A method utilising the production of t leptons via W?t? 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 t lepton branching fraction into three muons, Br(t?3µ) is 3.76×10-7 (3.94×10 -7) at 90 % confidence level.

Funding

ATLAS; G0275; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I006048/1

History

Publication status

  • Published

File Version

  • Published version

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Publisher

Springer Verlag

Issue

5

Volume

76

Article number

a232

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Experimental Particle Physics Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-04-11

First Open Access (FOA) Date

2017-04-11

First Compliant Deposit (FCD) Date

2017-04-11

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