Signals for CP-Violation in Scalar Tau Pair Production at Muon Colliders

Abstract

We discuss signals for CP-violation in ${\mu }^{+}{\mu }^{-}\to {\tilde{\tau }}_i^{-}{\tilde{\tau }}_j^{+}$, where $i,j=1,2$ label the two scalar $\tau$ mass eigenstates. We assume that these reactions can proceed through the production and decay of the heavy neutral Higgs bosons present in supersymmetric models. CP-violation in the Higgs sector can be probed through a rate asymmetry even with unpolarized beams, while the CP-odd phase associated with the $\tilde{\tau }$ mass matrix can be probed only if the polarization of at least one beam can be varied. These asymmetries might be $\mathcal{O}(1)$.

Comments: 9 pages, LaTeX with equations.sty, 3 PS figures (included)