Composite weak bosons and their radiative decays

Abstract In composite models of leptons, quarks, and weak bosons, radiative decays of the Z-boson may occur with a relatively large rate. In these decays a photon and a new spin zero particle are produced. The latter subsequently decays into lepton or quark pairs, or into a pair of photons. Various phenomenological aspects of these decays are studied. Radiative decays of the W ± boson are suppressed with respect to those of the Z 0 .