Single Charged Higgs production as a probe of CP violation at a Muon Collider

Abstract

We consider single charged Higgs ($H^{\pm }$) production in association with a $W^{\pm }$ boson at ${\mu }^{+}{\mu }^{-}$ colliders, in the context of the general CP violating Two Higgs Doublet Model (2HDM). We find that large cross-sections for the processes ${\mu }^{+}{\mu }^{-}\to H^{+}{W}^{-},H^{-}{W}^{+}$ are possible, and offer an attractive way of producing $H^{\pm }$ at ${\mu }^{+}{\mu }^{-}$ colliders. The difference in the cross-sections for $H^{+}{W}^{-}$ and $H^{-}{W}^{+}$ may exceed 1000 fb, and this represents a novel way of probing CP violation in the Higgs sector.

Comments: 15 pages, LaTex, 6 figures