GAUGE-INVARIANT FORMULATION OF STRONG WW SCATTERING

Models of strong WW scattering in the s-wave can be represented in a g auge invariant fashion by defining an effective scalar propagator that represents the strong scattering dynamics. The sigma(qq --> qqWW) sig nal may then be computed in U-gauge from the complete set of tree ampl itudes, just as in the standard model, without using the effective W a pproximation (EWA). The U-gauge ''transcription'' has a wider domain o f validity than the EWA, and it provides complete distributions for th e final state quanta, including experimentally important jet distribut ions that cannot be obtained from the EWA. Starting from the usual for mulation in terms of unphysical Goldstone boson scattering amplitudes, the U-gauge transcription is verified by using BRS invariance to cons truct the complete set of gauge and Goldstone boson amplitudes in R(xi ) gauge.