Trilinear Higgs couplings in the two Higgs doublet model withCPviolation

Measuring Trilinear Higgs Couplings in the MSSM

Trilinear couplings of the neutral CP -even Higgs bosons in the Minimal Supersymmetric Standard Model (MSSM) can be measured through the multiple production of the lightest CP -even Higgs boson (h) at high-energy ee colliders. This includes the production of the heavier CP -even Higgs boson (H) via ee → ZH, in association with the CP -odd Higgs boson (A) in ee → AH, or via ee → νeν̄eH, with H su...

Electroweak phase transition and Higgs self-couplings in the two-Higgs-doublet model

We calculate both the cubic and the quartic self-couplings of the lighter scalar Higgs boson without assuming the decoupling limit in the two-Higgs-doublet model (THDM). In some regions of parameter space of the THDM where the electroweak phase transition is strongly first order, it is possible that the quartic self-coupling of the lighter scalar Higgs boson might be deviated by at least 40 % f...

Simple Two Higgs Doublet Model

In the Two - Higgs Doublet - Model

Constraints on the two-Higgs-doublet model

The two-Higgs-doublet model provides a simple, yet interesting, generalization of the SM Higgs sector. We study the CP-conserving version of this model with general, flavor-diagonal, Yukawa couplings. Indirect constraints are obtained from flavor physics on the charged Higgs boson mass and couplings. The relation of these bounds to those for the more specialized two-Higgsdoublet model types wit...