Current status of Two-Higgs-Doublet models with a softly broken $\mathbb{Z}_2$ symmetry

Understand

One of the most popular extensions of the Standard Model is the Two-Higgs-Doublet model (2HDM), in which a second Higgs doublet is added to the conventional Standard Model particle content.

• 2HDM's with a softly broken $\mathbb{Z}_2$ symmetry avoid flavour-changing neutral Higgs currents at tree-level.
• They also comprise the Higgs sector of the Minimal Supersymmetric Standard Model.
• Current Higgs observables put strong constraints on these models.