Electroweak Corrections to the Decays of Stop and Gluino

The electroweak corrections at the order of $O({\alpha }_{ew}{m}_{t(b)}^2\mathrm{/}{m}_W^2)$ to the partial widths of the ${\tilde{t}}_2\to \tilde{g}+t$ and $\tilde{g} \to \tilde{t}_1 + \bar{t} $ decays (depending on the masses of the particles involved) are investigated within the Supersymmetric Standard Model. The relative corrections can reach the value of 10% in some parameter space, which can be comparable with the corresponding QCD corrections. Therefore, they should be taken into account for the precise experimental measurement at future colliders.