Enhanced Four-Body Decays of Charged Higgs Bosons into Off-Shell Pseudoscalar Higgs and $W^{\pm }$ Boson Pairs in a Lepton-Specific 2-Higgs Doublet Model

Stefano Moretti, Muyuan Song

We study the time-honoured decay $H^{\pm }\to A{W}^{\pm }$ but for the first time, we do so for the case of both $A$ and $W^{\pm }$ being off-shell, therefore computing a $1\to 4$ body decay…