In this proceeding we report the most recent results from the CDF and D0 collaborations on the rare decays of b-mesons. The presented results show a new D0 limit for?(B{sub s}° →??−) that represent the best single measurement on this mode so far, an update of the?(B{sub s}° →??) with, for the first time, an angular analysis on the final state, a new measurement of the?(B° → K*°?+?−) and?(B+ → K+?+?−) with an interesting measurement on the forward-backward asymmetry for those channels and the first observation of the?(B{sub s}° →??+?−).

Both CDF and D0 experiments have been searching for evidence of physics beyond the standard model (SM) using the Tevatron p{bar p} collider at Fermilab. We report on recent searches in the B flavor sector, especially decays via flavor changing neutral current processes (FCNC), B{sub (s)}° → e?− and B{sub s}° →?+?−, at the Tevatron.

We present the current status of the rare decay searches of B°{sub (s)} →??−, B →?+?−h, D+ →?+?+?− and B°{sub (s)} → h+h'− at the Tevatron Collider. We also report about the latest results on CP Violation for B° and B°{sub s} decay modes into pairs of charmless charged hadrons (pions and kaons).

The authors report new results on new physics searches beyond the Standard Model, on the searches for charged heavy vector boson (W{prime}), excited fermions ({mu}*, q*), and leptoquarks at the CDF and D0 experiments in p{bar p} collisions at {radical}s = 1.96 TeV.

Small effects that are beyond the current standard models of physics are often signatures for new physics, revealing fields and mass scales far removed from contemporary experimental capabilities. This perspective motivates sensitive searches for rare decays of the kaon. The current status of these searches is reviewed, new results are presented, and progress in the near future is discussed. Opportunities for exciting physics research at a hadron facility are noted. 5 refs., 8 figs., 1 tab.