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Prospects for charged Higgs searches at the LHC
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The goal of this report is to summarize the current situation and discuss possible search strategies for charged scalars, in non-supersymmetric extensions of the Standard Model at the LHC. Such scalars appear in Multi-Higgs-Doublet models (MHDM), in particular in the popular Two-Higgs-Doublet model (2HDM), allowing for charged and additional neutral Higgs bosons. These models have the attractive property that electroweak precision observables are automatically in agreement with the Standard Model at the tree level. For the most popular version of this framework, Model~II, a discovery of a charged Higgs boson remains challenging, since the parameter space is becoming very constrained, and the QCD background is very high. We also briefly comment on models with dark matter which constrain the corresponding charged scalars that occur in these models. The stakes of a possible discovery of an extended scalar sector are very high, and these searches should be pursued in all conceivable channels, at the LHC and at future colliders.
Forward citations
Cited by 3 Pith papers
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Searching for charged Higgs bosons in top decays via the $t^*b$ channel
Reinterpretation of ATLAS dileptonic ttbb data sets 1.9–2.9% limits on Br(t→H±b)×Br(H±→t*b) for mH±=110–165 GeV, competitive in top-philic and top-specific 2HDMs.
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Searching for charged Higgs bosons via $e^+ e^- \to H^\pm W^\mp S$ at the ILC
A detector-level Monte Carlo study shows that e+e- -> H± W∓ S in the type-X 2HDM could be discovered at the ILC with 500 GeV and 500 fb^-1.
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A comprehensive study of the charged Higgs boson in the two Higgs doublet type-II seesaw model
Charged Higgs production rates and 5-sigma discovery regions at a 3 TeV muon collider are computed for the 2HDMcT Type-III seesaw model, with the H1+ H1- channel exceeding the e+e- rate.
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