Top and bottom squarks decays under cosmological bounds

We investigate the fermionic decays of top squarks t˜1,2 and bottom squarks b˜1,2 in the Minimal Supersymmetric Standard Model with complex parameters M1, μ, At and Ab. In the analysis we particularly take into account the cosmological bounds imposed by WMAP data. We plot the CP phase dependences of stop and sbottom decay widths.