Tree-level unitarity constraints for the SM-like 2HDM

Abstract

We consider a Z_2-symmetric Two Higgs Doublet Model (2HDM), where the vacuum expectation values of both doublets are non-vanishing. Unitarity constraints for the SM-like 2HDM are analyzed for the mass of the lightest Higgs boson in the range [115,127] GeV. New stringent bounds on tanβ, 0.17<tanβ<6.10, are derived. A discussion of the source of these constraints is provided.

4 pages, 5 png figures. Results corrected after removing an error in calculations, conclusions on constraints on M_H+ modified

References in corpus (3)

• Evolution of Universe to the present inert phase
• Indirect bounds on heavy scalar masses of the two-Higgs-doublet model in light of recent Higgs boson searches
• Tree-level unitarity constraints in the 2HDM with CP-violation

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• High-scale validity of a model with Three-Higgs-doublets
• Higgs Bosons from Top Quark Decays
• New limits on $\tan \beta$ for 2HDMs with ${\mathbf{Z}}_2$ symmetry
• Lepton-Specific Two Higgs Doublet Model as a Solution of Muon $g-2$ Anomaly
• On the scalar potential of two-Higgs doublet models
• Testing Higgs Physics at the Photon Collider
• Charged Higgs discovery potential in the single top mode in 2HDMs
• Charged Higgs boson production in single top mode at the LHC