Rare Kaon Decays and εK: Theory Prediction

The Rare Kaon decays K+→π+νν-bar , KL→π0νν-bar , KL→π0l+l- and εK play an important role in the phenomenology of the Standard Model and its extensions. They are very sensitive to high energy scales and can be predicted with remarkable precision. In this talk, I give a summary of the theory prediction and present the results of our recent calculations: the NLO electroweak corrections to the top-quark contribution to the K→πνν-bar decays and the NNLO QCD corrections to the charm-top-quark contribution to εK.