The Electron/Muon Specific Two Higgs Doublet Model at e+ e- Colliders

Abstract

Recently, Kajiyama, Okada and Yagyu (KOY) proposed an electron/muon specific two Higgs doublet model. In this model, an S3 symmetry suppresses flavor changing neutral currents instead of a Z2 symmetry. In the "Type I" version of the model, the heavy Higgs bosons have a greatly enhanced coupling to electrons and muons. KOY studied the phenomenology of the heavy Higgs bosons at the LHC. In this paper, the phenomenology at electron-positron colliders is studied. For the heavy Higgs mass range between 150 and 210 GeV, bounds from LEP-200 are stronger than those from the LHC. The model allows for the interesting possibility that muon pair production at the ILC can be mediated by s-channel Higgs exchange. This requires an energy scan. The scanning rate and necessary resolution are discussed.

5 pages

References in corpus (7)

• Theory and phenomenology of two-Higgs-doublet models
• Constraints on and future prospects for Two-Higgs-Doublet Models in light of the LHC Higgs signal
• Heavy Higgs Searches and Constraints on Two Higgs Doublet Models
• Searches for heavy Higgs bosons in two-Higgs-doublet models and for t to ch decay using multilepton and diphoton final states in pp collisions at 8 TeV
• Two Higgs doublet models for the LHC Higgs boson data at $\sqrt{s}=$ 7 and 8 TeV
• Electron/Muon Specific Two Higgs Doublet Model
• Precision Higgs boson mass determination at lepton colliders

Cited by in corpus (4)

• Flavor violating signatures of lighter and heavier Higgs bosons within the Two Higgs Doublet Model Type-III at the LHeC
• Two Higgs doublet models with an $S_3$ symmetry
• Comparative Studies of 2HDMs under the Higgs Boson Precision Measurements
• Muon $g-2$ in a 2HDM assisted by inert scalars: probing at the ILC