Electroweak radiative corrections to sfermion decays

We analyze the partial decay widths of sfermions decaying into charginos and neutralinos $\mathrm{\Gamma }(\tilde{f}->f^{\mathrm{\prime }}\chi )$ at the one-loop level, including the electroweak and strong corrections. We present the renormalization framework, and discuss the value of the corrections. Since these corrections show non-decoupling effects, we analyze the radiative effects induced by a heavy squark sector into the lepton-slepton-chargino/neutralino couplings. We conclude that some knowledge of the heavy sector is needed in order to provide a sufficiently precise prediction for slepton observables at an $e^{+}{e}^{-}$ Linear Collider.