No charged Higgs boson signal was found in the top-bottom decay channel at 13 TeV; CMS sets 95% CL upper limits of 9.6 to 0.01 pb for masses from 200 GeV to 3 TeV.
Charged-Higgs-boson production at the LHC: NLO supersymmetric QCD corrections
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abstract
The dominant production process for heavy charged Higgs bosons at the LHC is the associated production with heavy quarks. We have calculated the next-to-leading-order supersymmetric QCD corrections to charged-Higgs production through the parton processes $q\bar{q},gg \to tbH^{\pm}$ and present results for total cross sections and differential distributions. The QCD corrections reduce the renormalization and factorization scale dependence and thus stabilize the theoretical predictions. We present a comparison of the next-to-leading-order results for the inclusive cross section with a calculation based on bottom--gluon fusion $gb \to tH^{\pm}$ and discuss the impact of the next-to-leading-order corrections on charged-Higgs searches at the LHC.
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2019 1verdicts
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Search for a charged Higgs boson decaying into top and bottom quarks in events with electrons or muons in proton-proton collisions at $\sqrt{s} =$ 13 TeV
No charged Higgs boson signal was found in the top-bottom decay channel at 13 TeV; CMS sets 95% CL upper limits of 9.6 to 0.01 pb for masses from 200 GeV to 3 TeV.