THE KINEMATICS AND DYNAMICS OF FLAVOR MIXING

In view of the observed strong hierarchy of the quark and lepton masse s and of the flavor mixing: angles, it is argued that the description of flavor mixing must take this into account. One particularly interes ting way to describe the flavor mixing, which, however, is not the one used today, emerges, which is particularly suited for models of quark mass matrices based on flavor symmetries. We conclude that the unitar ity triangle important for B physics should be close to or identical t o a rectangular triangle. CP violation is maximal in this sense.