# Charged Higgs bosons in the extended supersymmetric scenario at the LHC

## TL;DR

This paper explores an extended supersymmetric model with additional Higgs triplet and singlet fields, predicting new charged Higgs bosons with unique decay modes, and discusses their potential detection at the LHC.

## Contribution

It introduces a novel MSSM extension with a Higgs triplet and singlet, highlighting new charged Higgs bosons and their distinctive production and decay channels.

## Key findings

- Presence of two new charged Higgs bosons decaying into ZW and a1W modes.
- Triplet charged Higgs can be produced via vector boson fusion at tree level.
- Light pseudoscalar enables unique decay modes for charged Higgs bosons.

## Abstract

We investigate an extension of the Minimal Supersymmetric Standard Model (MSSM) containing a $SU(2)$ Higgs triplet of zero hypercharge and a gauge singlet. We focus on a scenario of this model which allows a light pseudoscalar and/or a scalar below $100$ GeV in the spectrum, consistent with the most recent data from the LHC and the earlier data from the LEP experiments. The triplet extension gives rise to two additional charged Higgs bosons which do not couple to fermions but can decay into $Z W^\pm$. The presence of a very light pseudoscalar opens $a_1 W^\pm$ decay mode for the light charged Higgs boson just like $Z_3$ symmetric singlet-extension (NMSSM). A triplet type charged Higgs can be produced via vector boson fusion at the tree-level which is absent in 2HDM and MSSM and NMSSM. If such charged Higgs boson is pair produced both $Z W^\pm$ and $a_1 W^\pm$ decay modes can be probed which can prove the existence of triplet and singlet both.