New Light H± Discovery Channels at the LHC

A light charged Higgs boson has been searched for at the Large Hadron Collider (LHC) via top (anti)quark decay, i.e., t & RARR;bH+, if kinematically allowed. In this contribution, we propose new channels for light charged Higgs boson searches via the pair productions pp & RARR;H & PLUSMN;h/A and pp & RARR;H+H- at the LHC in the context of the Two-Higgs Doublet Model (2HDM) Type-I. By focusing on a case where the heavy H state is the Standard Model (SM)-like one already observed, we investigate the production of the aforementioned charged Higgs bosons and their bosonic decay channels, namely, H & PLUSMN;& RARR;W & PLUSMN;h and/or H & PLUSMN;& RARR;W & PLUSMN;A. We demonstrate that such production and decay channels can yield substantial alternative discovery channels for H & PLUSMN; bosons at the LHC. Finally, we propose eight benchmark points (BPs) to motivate the search for such signatures.

Automated summary

This paper proposes new channels for searching for a light charged Higgs boson at the LHC, focusing on the production and decay of charged Higgs bosons in the context of the Two-Higgs Doublet Model Type-I. It demonstrates that these channels could provide substantial alternative discovery pathways and suggests eight benchmark points to motivate the search for such signatures.