Implications of chiral dynamics in theories of technicolour; 1, elementary couplings

Models of dynamical weak interaction symmetry breaking involve new strong interactions with a mass scale of order 1 TeV. However, such models usually include multiplets of mesons-the Goldstone bosons accompanying the dynamical chiral symmetry breakdown-which have masses small compared to this scale and possibly as small as 10 GeV. The authors construct an effective lagrangian which describes the couplings of these mesons to one another and to the gauge bosons of colour and the electroweak interactions. As an application of this formalism, they compute the decay width of the Z/sup 0/ into pairs and triplets of these mesons. (21 refs).