Extended Higgs sector beyond the MSSM and the LHC

TL;DR

This paper explores extended Higgs sectors beyond the MSSM, analyzing their phenomenology, potential signals at the LHC, and future collider prospects for understanding the Higgs boson's nature.

Contribution

It introduces simple extended Higgs models used as benchmarks, comparing their predictions and potential to be distinguished at colliders.

Findings

Extended models include charged and CP-violating Higgs bosons.

Some models can be distinguished based on their predicted rates.

Future colliders will improve understanding of Higgs properties.

Abstract

One Higgs was found. Are there more? In this work we discuss simple extension of the scalar sector of the Standard Model (SM) used as benchmark models by ATLAS and CMS in the searches for new scalars at the LHC. We discuss how much the discovered 125 GeV Higgs at the LHC resembles the SM Higgs and how will our understanding of the Higgs nature improve at future electron-positron colliders. Models with extended Higgs sectors provide very interesting scenarios, from the existence of charged Higgs bosons to CP-violating scalars that can be probed by the experimental collaborations at the LHC. Comparison between the rates in the different models show that in some cases the models could be distinguished.