Next-to-Leading Order QCD corrections to $B\bar B$-mixing and $ε_K$ within the MSSM

We present a calculation of the QCD correction factors $\eta_{2B}$ and $\eta_{2K}$ up to Next-to-Leading Order within the MSSM. We took into account the region of low $\tan\beta$ for the Higgs- and chargino sector while neglecting the effect of gluinos and neutralinos.