Speaker
Description
In the CP-violating 2HDM, the CP-violating Higgs to fermions couplings can make an additional loop contribution on the Higgs to gauge bosons couplings. In order to address this aspect, we consider a generic model which has the effective CP-violation structure of the Higgs to gauge bosons couplings. We explore the effect of CP-violation term via the process $e^+ e^- \rightarrow HZ, Z\rightarrow \mu^+ \mu^-$, where the angular distribution of muon pair can be sensitive to the CP-violation structure. In particular, the transverse polarization of the initial beams can be applied to single out the effect of CP-violating term compared to the unpolarized or longitudinally polarized beams. We discuss the set-up and the results for the differential cross section and the asymmetries with respect to the CP-odd observables with transverse polarization, at the future $e^+ e^-$ collider with center-of-mass energy 250 GeV.
