Study of e^{+}e^{-} --> \tilde{\chi}^{+}_{1} \tilde{\chi}^{-}_{1} --> \tilde{\tau}^{+}_{1}\nu_{\tau} + \tilde{\tau}^{-}_{1}\bar{\nu}_{\tau}

Abstract

In Supersymmetry with large $\tan \beta$ values, the lighter stau (${\tilde{\tau }}_1$) may be lighter than the lightest chargino (${\tilde{\chi }}_1^{\pm }$). The decay ${\tilde{\chi }}_1^{\pm }\to {\tilde{\tau }}_1^{\pm }{\nu }_{\tau }$, followed by ${\tilde{\tau }}_1^{\pm }\to {\tilde{\chi }}_1^0\tau$, alters a phenomenology of the chargino production. We study the chargino pair production at future $e^{+}{e}^{-}$ linear colliders.

Comments: 5 pages, 4 figures, to appear on the Proceedings of the International Workshop on Linear Colliders LCWS99, Sitges, Spain, April 28-May 5, 1999