2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42608We analyze the partial decay widths of sfermions decaying into charginos and neutralinos $Γ(\tilde{f} -> f'χ)$ 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.LaTeX 15 pages, 7 figures, 2 tables. Updated talk given at the 2nd Workshop of the ``Extended Joint ECFA/DESY Study on Physics and Detectors for a Linear Electron - Positron Collider'' Saint Malo (France), 12-15 April 2002High Energy Physics - Phenomenologytext