Constraining the two-Higgs doublet models with the LHC data

TL;DR

This paper uses LHC and Tevatron data to constrain the parameter space of Two-Higgs Doublet Models, including aligned and $ ext{Z}_2$ symmetric variants, based on the observed 126 GeV boson.

Contribution

It provides the first comprehensive analysis of Two-Higgs Doublet Models constraints using current collider data, considering both aligned and discrete symmetry scenarios.

Findings

Significant restrictions on the parameter space of Two-Higgs Doublet Models.

Compatibility of certain model variants with the observed Higgs boson properties.

Guidance for future experimental searches for extended Higgs sectors.

Abstract

The recent discovery of a Standard Model-like boson with mass of about 126 GeV seems to be the first direct information on the electroweak symmetry breaking mechanism. Using the available experimental data from the LHC and Tevatron we study the implications on the parameter space of the Two-Higgs Doublet Model extension of the Standard Model. The generic structure of the Aligned Two-Higgs Doublet model is imposed in the Yukawa sector; also the models with discrete $\mathcal{Z}_2$ symmetries are analyzed.