Top-squark mixing effects in the supersymmetric electroweak corrections   to top quark production at the Tevatron
  Taking into account the mixing effects between left- and right-handed top-squarks, we calculate the genuine supersymmetric eletroweak correction to top quark production at the Tevatron in the minimal supersymmetric model. The analytic expressions of the corrections to both the parton level cross section and the total hadronic cross section are presented. Some numerical examples are also given to show the size of the corrections. 
Jin Min Yang and Chong Sheng Li