Gauge model of generation nonuniversality revisited

Six years ago, a gauge model of generation nonuniversality was proposed in which the {τ} lifetime was predicted to be longer, and B⁰-B⁰ mixing to be greater, than in the standard model. Since current experimental data appear to favor both of these interpretations, an updated and improved analysis is here presented. In particular, a plausible branching fraction of the order 10^-4 is predicted for b{→}sl⁺{l}^{{{-}}}$, just below the present experimental limit and well above the standard-model expectation of ${10}^{{{-}}6}$.