Radiatively induced flavour violation in the general two-Higgs doublet model with Yukawa alignment

Understand

The most general two Higgs doublet model contains new sources of flavour violation that are usually in conflict with the experimental constraints.

• One possibility to suppress the exotic contribution to the flavour changing neutral currents consists on imposing the alignment of the Yukawa couplings.
• This condition presumably holds at a high-energy scale and is spoiled by the radiative corrections.
• We compute in this letter the size of the radiatively induced flavour violating Higgs couplings at the electroweak scale.