Exploring the 2HDM with Global Fits in $\texttt{GAMBIT}$

TL;DR

This paper performs a comprehensive global fit of the type-II 2HDM using GAMBIT, incorporating diverse experimental and theoretical constraints, and finds certain flavor observables cannot be explained within this model.

Contribution

It provides the first extensive global fit of the type-II 2HDM with GAMBIT, including the latest experimental constraints and exploring the model's viability.

Findings

Type-II 2HDM cannot explain B→K*μ+μ− angular observables.

The fit confirms previous constraints but extends the analysis.

Certain parameter regions are disfavored by current data.

Abstract

In this work, we present preliminary results of a global fit of the type-II two-Higgs-doublet model (2HDM) with the tool $\texttt{GAMBIT}$. Our study includes various constraints, including the theoretical constraints (unitarity, perturbativity and vacuum stability), Higgs searches at colliders, electroweak physics and flavour constraints. With the latest experimental results, our results not only confirm past studies but also go further in probing the model. We find, for example, that the measurements of $B\rightarrow K^*\mu^+\mu^-$ angular observables cannot be explained in the type-II 2HDM.