Charged and Pseudoscalar Higgs production at a Muon Collider

Abstract

We consider single charged Higgs ($H^{\pm }$) and pseudoscalar Higgs ($A^0$) production in association with a gauge boson at ${\mu }^{+}{\mu }^{-}$ colliders. We find that the tree-level t-channel and s-channel contributions to ${\mu }^{+}{\mu }^{-}\to H^{\pm }{W}^{\mp },A^{0}Z$ are enhanced for large values of $\tan \beta$, allowing sizeable cross-sections whose analogies at $e^{+}{e}^{-}$ colliders would be very small. These processes provide attractive new ways of producing such particles at ${\mu }^{+}{\mu }^{-}$ colliders and are superior to the conventional methods in regions of parameter space.

Comments: 11 pages Latex, 5 figures, formulae added in sections 2.2 and 2.3, extra discussion in section 2.3, references added