Complete analysis of the next-to-leading order supersymmetric QCD corrections toB0−B0mixing

We present a complete next-to-leading-order calculation of the QCD corrections to $B^0-B^0$ ${(K}^0-K^0)$ mixing in the framework of minimal flavor violating supersymmetry. We take into account the contributions from the gluino and find that the gluino-mediated corrections modify the leading order result obviously even when the mass of the gluino $m_{\tilde{g}}\gg m_{\mathrm{w}}.$ In general, one cannot neglect gluino contributions.