Search for charged Higgs bosons decaying via H± → τ±ντ in the τ+jets and τ+lepton final states with 36 fb−1 of pp collision data recorded at s√=13 TeV with the ATLAS experiment
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(Published version)
Date
2018
Authors
Aaboud, M.
Aad, G.
Abbott, B.
Abdinov, O.
Abeloos, B.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.
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Journal Title
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Journal article
Citation
Journal of High Energy Physics (JHEP), 2018; 2018(9):139-1-139-48
Statement of Responsibility
M. Aaboud, G. Aad, B. Abbott ... D. Duvnjak ... Paul Jackson ... J.L. Oliver ... A. Petridis ... Abhishek Sharma ... Martin White ... et al. (The ATLAS Collaboration)
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Abstract
Charged Higgs bosons produced either in top-quark decays or in association with a top-quark, subsequently decaying via H± → τ±ντ, are searched for in 36.1 fb−1 of proton-proton collision data at s√=13 TeV recorded with the ATLAS detector. Depending on whether the top-quark produced together with H± decays hadronically or leptonically, the search targets τ+jets and τ+lepton final states, in both cases with a hadronically decaying τ-lepton. No evidence of a charged Higgs boson is found. For the mass range of mH± = 90–2000 GeV, upper limits at the 95% confidence level are set on the production cross-section of the charged Higgs boson times the branching fraction B(H±→τ±ντ) in the range 4.2–0.0025 pb. In the mass range 90–160 GeV, assuming the Standard Model cross-section for tt¯ production, this corresponds to upper limits between 0.25% and 0.031% for the branching fraction B(t→bH±)×B(H±→τ±ντ).
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Published: September 25, 2018
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Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3.Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.