Single-charged Higgs boson in $W^\pm H^\mp$ associated production within the 2HDMs

TL;DR

This paper explores the potential for detecting charged Higgs bosons produced alongside W bosons in 2HDMs at the LHC, focusing on specific decay channels and parameter regions.

Contribution

It analyzes the production and decay signatures of charged Higgs bosons in 2HDMs type-I and type-X, highlighting promising experimental detection channels.

Findings

Significant production rates at low tanβ when M_{H^ ext{±}} < m_t - m_b

Proposed bb and ττ final states as promising detection channels

Potential to complement existing LHC searches for charged Higgs bosons

Abstract

In this contribution, the likelihood of seeing charged Higgs and $W$ boson production in the context of 2HDMs type-I and type-X at the LHC is examined, assuming that either $h$ or $H$ resembles the detected resonance around $\sim 125$ GeV. We consider the possibility of the charged Higgs boson decays channels through $H^\pm \to W^\pm h_i / A$, focusing on the $b\bar{b}$ and $\tau\tau$ decays of $h_i$ and $A$. In both type-I and type-X insights of the 2HDMs, we investigate the potential fingerprints resulting from the previously mentioned charged Higgs production and decay. We find in our study that these signatures can have sizable rates at low $\tan\beta$ as long as the condition $M_{H^\pm} < m_t - m_b$ is met. As a result, we propose the $bb$ and $\tau\tau$ final states associated with $WW$ as an encouraging experimental avenue that would complement the LHC search for a charged Higgs boson.