Flavor from the Electroweak Scale

Understand

We discuss the possibility that flavor hierarchies arise from the electroweak scale in a two Higgs doublet model, in which the two Higgs doublets jointly act as the flavon.

• Quark masses and mixing angles are explained by effective Yukawa couplings, generated by higher dimensional operators involving quarks and Higgs doublets.
• Modified Higgs couplings yield important effects on the production cross sections and decay rates of the light Standard Model like Higgs.
• In addition, flavor changing neutral currents arise at tree-level and lead to strong constraints from meson-antimeson mixing.