Doubly Charged Higgsino Pair Production and Decays in e+e- Collisions

Abstract

In supersymmetric grand unified theories, light higgsino multiplets generally exist in addition to the familiar chargino/neutralino multiplets of the minimal supersymmetric extension of the Standard Model. The new multiplets may include doubly charged states $\tilde{\hat{I}}{”}^{\pm \pm }$ and $\tilde{\hat{I}}{´}^{\pm \pm }$. We study the properties and the production channels of these novel higgsinos in $e^{+}{e}^{-}$ and ${\hat{I}}^3{\hat{I}}^3$ collisions, and investigate how their properties can be analyzed experimentally.

LATEX, 25 pages, ps figures included