Complete cosmological model based on an asymmetric scalar Higgs doublet

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...

Simple Two Higgs Doublet Model

Production of Scalar Higgs and Pseudoscalar Higgs in Multi-Higgs Doublet Models at γγ Colliders

We present the effects of heavy CP-even (H) and CP-odd (A) Higgs bosons on the production cross section of the process γγ → tt at the energy around the mass poles of the Higgs bosons. It is found that the interference between H and A with the small mass gap, as well as the ones between Higgs bosons and the continuum, contributes to the cross section, if the photon beams are polarized and if we ...

mortality forecasting based on lee-carter model

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

CP violation in the two-Higgs-doublet model: An example.

In a general two-scalar-doublet model without fermions, there is a unique source of CP violation, J 1 , in the gauge interactions of the scalars. It arises in the mixing of the three neutral physical scalars X 1 , X 2 and X 3. CP violation may be observed via different decay rates for X 1 — depending on which decays are kinematically allowed). I compute the part of those CP-violating decay-rate...