Dynamical resonances in strongly coupled Higgs models

The scattering of Goldstone and longitudinal gauge bosons in weak-interaction theories with a strongly coupled Higgs sector is studied. By combining low-energy theorems with analyticity, unitarity, and crossing symmetry, it is argued that, quite generally in such theories, one would expect a prominent resonance in the I=J=1 channel (where I=weak isospin) analogous to the {ρ} resonance in {π}-{π} scattering. Implications for p{}p collider events are explored.