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

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.
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Article dans une revue
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77, pp.70. 〈10.1140/epjc/s10052-017-4624-0〉
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http://hal.in2p3.fr/in2p3-01308047
Contributeur : Sabine Starita <>
Soumis le : mercredi 27 avril 2016 - 10:54:43
Dernière modification le : lundi 22 octobre 2018 - 09:42:01

Citation

G. Aad, M.K. Ayoub, A. Bassalat, S. Binet, C. Becot, et al.. Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77, pp.70. 〈10.1140/epjc/s10052-017-4624-0〉. 〈in2p3-01308047〉

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