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Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector

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ATLAS Collaboration (Including: Beckingham, M., Ennis, Joseph Stanford, Farrington, Sinead, Harrison, P. F., Jeske, C., Jones, G., Martin, T. A., Murray, W., Pianori, E. and Spangenberg, Martin). (2017) Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector. European Physical Journal C, 77 (2). 70. doi:10.1140/epjc/s10052-017-4624-0

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Official URL: http://doi.org/10.1140/epjc/s10052-017-4624-0

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Abstract

Direct searches for lepton flavour violation in
decays of the Higgs and Z bosons with the ATLAS detector
at the LHC are presented. The following three decays
are considered: H → eτ , H → μτ , and Z → μτ . The
searches are based on the data sample of proton–proton collisions
collected by the ATLAS detector corresponding to an
integrated luminosity of 20.3 fb−1 at a centre-of-mass energy
of √s = 8 TeV. No significant excess is observed, and upper
limits on the lepton-flavour-violating branching ratios are
set at the 95% confidence level: Br(H → eτ) < 1.04%,
Br(H → μτ ) < 1.43%, and Br(Z → μτ ) < 1.69 × 10−5.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Journal or Publication Title: European Physical Journal C
Publisher: Springer
ISSN: 1434-6044
Official Date: 4 February 2017
Dates:
DateEvent
4 February 2017Published
15 January 2017Accepted
Volume: 77
Number: 2
Article Number: 70
DOI: 10.1140/epjc/s10052-017-4624-0
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: ** From PubMed via Jisc Publications Router. ** History: ** received: 27-04-2016 ** accepted: 15-01-2017
Access rights to Published version: Open Access

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