  Stop particles are expected to be the lightest squarks in supersymmetric
theories and the search for these particles is an important experimental task.
We therefore present the cross sections for the production processes
$p\bar{p}/pp \to \ste\steb$ and $\stz\stzb$ at Tevatron and LHC energies in
next-to-leading order supersymmetric QCD. The corrections stabilize the
theoretical predictions for the cross sections, and they are positive, thus
raising the cross sections to values above the leading-order predictions. Mixed
$\ste\stzb/\steb\stz$ pairs can only be generated in higher orders at strongly
suppressed rates.
