Benchmarks for Higgs Pair Production and Heavy Higgs Searches in the Two-Higgs-Doublet Model of Type II

Abstract

The search for additional Higgs particles and the exact measurements of Higgs (self-) couplings is a major goal of future collider experiments. In this paper we investigate the possible sizes of new physics signals in these searches in the context of the $CP$-conserving two-Higgs doublet model of type II. Using current constraints from flavour, electroweak precision, and Higgs signal strength data, we determine the allowed sizes of the triple Higgs couplings and the branching fractions of the heavy Higgs bosons into lighter Higgs bosons. Identifying the observed Higgs resonance with the light $CP$-even 2HDM Higgs boson $h$, we find that the $hhh$ coupling cannot exceed its SM value, but can be reduced by a factor of $0.56$ at the 2 $\sigma$ level. The branching fractions of the heavy neutral Higgs bosons $H$ and $A$ into two-fermion or two-vector-boson final states can be reduced by factors of $0.4$ and $0.01$, respectively, if decays into lighter Higgs boson are possible and if the mass of the decaying Higgs is below the $t\bar{t}$ threshold. To facilitate future studies of collider signatures in 2HDM scenarios with large triple Higgs couplings or decay modes of the heavy Higgs bosons not covered by the SM Higgs searches we provide a set of benchmark points which exhibit these features and agree with all current constraints. We also discuss the effect of the heavy Higgs bosons on the $gg\to hh$ cross section at a 14 TeV LHC for some of these benchmarks. For $m_H$ below the $hh$ threshold we see a reduction of the SM $gg\to hh$ cross section due to destructive interference, but for $m_H$ above the $hh$ threshold current constraints allow enhancement factors above 50. An enhancement factor of 6 is still possible in scenarios in which the heavy Higgs particles would not be discovered by standard searches after 300 fb${}^{-1}$ of data.

References in corpus (14)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Higgs pair production at the LHC with NLO and parton-shower effects
• New Physics in LHC Higgs boson pair production
• Higgs-Pair Production and Measurement of the Triscalar Coupling at LHC(8,14)
• News from FormCalc and LoopTools
• Exploring Two Higgs Doublet Models Through Higgs Production
• Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model
• Probing the charged Higgs boson at the LHC in the CP-violating type-II 2HDM
• Status of the aligned two-Higgs-doublet model confronted with the Higgs data
• Interim recommendations for the evaluation of Higgs production cross sections and branching ratios at the LHC in the Two-Higgs-Doublet Model
• 2HDM at the LHC - the story so far
• Are There Hidden Scalars in LHC Higgs Results?
• Implications on the Heavy CP-even Higgs Boson from Current Higgs Data

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