Bosonic Decays of Charged Higgs Bosons in a 2HDM Type-I

TL;DR

This paper investigates the bosonic decay channels of light charged Higgs bosons within the 2HDM Type-I, highlighting their potential as alternative discovery modes at colliders.

Contribution

It quantifies the branching ratios of specific bosonic decay channels of charged Higgs bosons in 2HDM Type-I and explores their viability as discovery channels.

Findings

Branching ratios for $H^ o W h$ and $H^ o W A$ can be significant.

These channels remain viable within current experimental constraints.

They offer alternative detection strategies to traditional decay modes.

Abstract

In this study, we focus on the bosonic decays of light charged Higgs bosons in the 2-Higgs Doublet Model (2HDM) Type-I. We quantify the Branching Ratios (BRs) of the $H^\pm \to W^\pm h$ and $H^\pm\to W^\pm A$ channels and show that they could be substantial over several areas of the parameter space of the 2HDM Type-I that are still allowed by Large Hadron Collider (LHC) and other experimental data as well as theoretical constraints. We suggest that $H^\pm \to W^\pm h$ and/or $H^\pm \to W^\pm A$ could be used as a feasible discovery channel alternative to $H^\pm \to \tau\nu$.