Flavor Physics in the multi-Higgs-Doublet Models (Yuji Omura)

by Yuji Omura

Thursday 24 Jan 2013, 14:00 → 15:00 Europe/Berlin

HS3 (Physikdepartment)

I introduce our multi-Higgs-Doublet models motivated by the top forward-backward asymmetry at Tevatron and the semileptonic decay of B (B->D(*)tau nu) at the BaBar experiment. In our model, extra Higgs doublets exist and extra U(1) gauge symmetry is also introduced to avoid the strong constraints from flavor physics. The Higgs scalars, charged Higgs and the U(1) gauge boson have flavor changing couplings at tree level, and they modify the Standard-Model predictions in top and B physics. I will discuss our studies including the bounds from LHC and Belle experiments, and show the favored and allowed regions by the experiments.