Flavorful Two Higgs Doublet Models with a Twist

Understand

We explore Two Higgs Doublet Models with non-standard flavor structures.

• In analogy to the four, well studied, models with natural flavor conservation (type 1, type 2, lepton-specific, flipped), we identify four models that preserve an approximate $U(2)^5$ flavor symmetry acting on the first two generations.
• In all four models, the couplings of the 125 GeV Higgs are modified in characteristic flavor non-universal ways.
• The heavy neutral and charged Higgs bosons show an interesting non-standard phenomenology.