Study of e^{+}e^{-} --> \tildeχ^{+}_{1} \tildeχ^{-}_{1} --> \tildeτ^{+}_{1}ν_τ + \tildeτ^{-}_{1}\barν_τ

Abstract

In Supersymmetry with large $\tanβ$ values, the lighter stau ($\tildeτ_{1}$) may be lighter than the lightest chargino ($\tildeχ^{\pm}_{1}$). The decay $\tildeχ^{\pm}_{1} \to \tildeτ^{\pm}_{1} ν_τ$, followed by $\tildeτ^{\pm}_{1} \to \tildeχ^{0}_{1} τ$, alters a phenomenology of the chargino production. We study the chargino pair production at future $e^{+}e^{-}$ linear colliders.