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



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abhayasinghe, DK, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2914 more authors) (2018) 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. The Journal of High Energy Physics.

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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).

Item Type: Article
Uncontrolled Keywords: Beyond Standard Model, Hadron-Hadron scattering (experiments), Higgs physics
Depositing User: Symplectic Admin
Date Deposited: 10 Sep 2018 15:26
Last Modified: 17 May 2021 10:38
DOI: 10.1007/JHEP09(2018)139
Open Access URL: https://doi.org/10.1007/JHEP09(2018)139
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3026042