Reconstructing the general 2HDM charged Higgs boson at the LHC

TL;DR

This paper explores the potential to discover a charged Higgs boson in the general 2HDM at the LHC, focusing on unique Yukawa couplings that could explain the Universe's matter-antimatter asymmetry.

Contribution

It introduces a novel analysis of charged Higgs production via specific Yukawa couplings in the G2HDM, highlighting discovery prospects at the LHC.

Findings

Evidence possible at 14 TeV LHC with 300 fb$^{-1}$

Discovery potential at 600 fb$^{-1}$

Proposes benchmark points for experimental searches

Abstract

We study the discovery prospects for a charged Higgs boson via the $b g\to c H^- \to c \bar t b$ process at the Large Hadron Collider (LHC). Focusing on the general Two Higgs Doublet Model (G2HDM) that possesses extra Yukawa couplings, the process is controlled by extra top couplings $\rho_{tc}$ and $\rho_{tt}$, which can drive electroweak baryogenesis (EWBG) to account for the baryon asymmetry of the Universe (BAU). We propose benchmark points (BPs) and demonstrate that evidence could emerge at 14 TeV LHC and luminosity of 300 fb$^{-1}$, with discovery potential at 600 fb$^{-1}$.