We present a model–independent analysis of the Zb¯b vertex, with the aim of constraining contributions of new physics to the left- and right–handed couplings of the b. We find that the left–handed coupling of the b is quite ...

We summarize the indirect effects of new physics in a variety of processes. We consider precision electroweak measurements, the g−2 of the muon, rare decays, meson mixing, CP violation, lepton number violating interactions, ...