Probing a light charged Higgs boson at the LHC Run 3

We study the Large Hadron Collider (LHC) discovery prospects of a light charged Higgs boson decaying into a $W$ boson and a non-Standard Model (SM)-like Higgs within the 2-Higgs Doublet Model type-I. In the analysis, we consider the associated production of a charged Higgs boson with a light neutral one, $pp\to H^{\pm }h$, with the subsequent $H^{\pm }\to W^{\pm \ast }h$. We then investigate the emerging $W^{\pm \ast }+4b$ final state and provide several benchmark points for signal-to-background analysis. We therefore show that this signal could be an excellent avenue for identifying $H^{\pm }$ at the LHC.