Classification of anomaly-free 2HDMs with a gauged U(1)' symmetry

Understand

Two-Higgs-doublet models (2HDMs) with a flavored U(1)' gauge symmetry are a popular extension to the Standard Model (SM), yet they currently lack a complete survey.

• In this paper, we present a full classification of anomaly-free 2HDMs within the SM fermion content, resulting in a total of eleven distinct models.
• Four of these are relatively well-studied, while the rest either partially, or entirely, lack previous treatment.
• We study these textures under a variety of experimental bounds, focusing mainly on the previously unexplored models.