Search for charged Higgs bosons in the H${}^{\pm }$ $\to$ ${\tau }^{\pm }{\nu }_{\tau }$ decay channel in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Abstract

A search is presented for charged Higgs bosons in the H${}^{\pm }$ $\to$ ${\tau }^{\pm }{\nu }_{\tau }$ decay mode in the hadronic final state and in final states with an electron or muon. The search is based on proton-proton collision data recorded by the CMS experiment in 2016 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb${}^{-1}$. The results agree with the background expectation from the standard model. Upper limits at 95% confidence level are set on the production cross section times branching fraction to ${\tau }^{\pm }{\nu }_{\tau }$ for an H${}^{\pm }$ in the mass range of 80 GeV to 3 TeV, including the region near the top quark mass. The observed limit ranges from 6 pb at 80 GeV to 5 fb at 3 TeV. The limits are interpreted in the context of the minimal supersymmetric standard model $m_{\mathrm{h}}^{\mathrm{mod}-}$ scenario.

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