Complete analysis on the next-to-leading order supersymmetric QCD corrections to $B^0-{\bar{B}}^0$ mixing

Abstract

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

Comments: 91 pages + 11 eps figures, publication version in PRD