2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49533We report on the effect that one-loop radiative corrections to the chargino pair production cross section has on the determination of the fundamental parameters of the theory. We work in the context of electron-positron colliders with sqrt(s)=500 GeV. We conclude that the inclusion of these corrections is crucial in precision measurements, specially at large and small values of tan(beta).5 pages, 4 figures. Talk given at the International Workshop on Linear Colliders LCWS99, April 28 - May 5, 1999 Sitges, Barcelona, SpainHigh Energy Physics - Phenomenologytext