Single charged Higgs production as a probe of CP violation at a muon collider

We consider single charged Higgs (H+/-) production in association with a W+/- 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 (-) --> H+W-, H-W+ are possible, and offer an attractive way of producing H+/- 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. (C) 2001 Published by Elsevier Science B.V.