This Letter presents direct searches for lepton flavour violation in Higgs boson decays, H -> e tau and H -> mu tau, performed with the ATLAS detector at the LHC. The searches are based on a data sample of proton-proton collisions at a centre-of-mass energy root s = 13 TeV, corresponding to an integrated luminosity of 36.1 fb(-1). No significant excess is observed above the expected background from Standard Model processes. The observed (median expected) 95% confidence-level upper limits on the lepton-flavour-violating branching ratios are 0.47%(0.34(-0.10)(+0.13)%) and 0.28%(0.37(-0.10)(+0.14)%) for H -> e tau and H -> mu tau, respectively. (C) 2019 The Author(s). Published by Elsevier B.V.

Aad, G., Abbott, B., Abbott, D.c., Abed Abud, A., Abeling, K., Abhayasinghe, D.k., et al. (2020). Searches for lepton-flavour-violating decays of the Higgs boson in s=13 TeV pp collisions with the ATLAS detector. PHYSICS LETTERS. SECTION B, 800, 135069 [10.1016/j.physletb.2019.135069].

Searches for lepton-flavour-violating decays of the Higgs boson in s=13 TeV pp collisions with the ATLAS detector

Aielli G.;Camarri P.;Cerrito L.;De Sanctis U.;Dell'Asta L.;Di Ciaccio A.;Loffredo S.;Vanadia M.;
2020-01-01

Abstract

This Letter presents direct searches for lepton flavour violation in Higgs boson decays, H -> e tau and H -> mu tau, performed with the ATLAS detector at the LHC. The searches are based on a data sample of proton-proton collisions at a centre-of-mass energy root s = 13 TeV, corresponding to an integrated luminosity of 36.1 fb(-1). No significant excess is observed above the expected background from Standard Model processes. The observed (median expected) 95% confidence-level upper limits on the lepton-flavour-violating branching ratios are 0.47%(0.34(-0.10)(+0.13)%) and 0.28%(0.37(-0.10)(+0.14)%) for H -> e tau and H -> mu tau, respectively. (C) 2019 The Author(s). Published by Elsevier B.V.
2020
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
Con Impact Factor ISI
Aad, G., Abbott, B., Abbott, D.c., Abed Abud, A., Abeling, K., Abhayasinghe, D.k., et al. (2020). Searches for lepton-flavour-violating decays of the Higgs boson in s=13 TeV pp collisions with the ATLAS detector. PHYSICS LETTERS. SECTION B, 800, 135069 [10.1016/j.physletb.2019.135069].
Aad, G; Abbott, B; Abbott, Dc; Abed Abud, A; Abeling, K; Abhayasinghe, Dk; Abidi, Sh; Abouzeid, Os; Abraham, Nl; Abramowicz, H; Abreu, H; Abulaiti, Y;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/227720
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