Quarks and Leptons in a Unified Preon Model
M. Idà · Progress of Theoretical Physics · 1984
Phenomenological aspects of quarks and leptons are investigated in the SU(7) ⊗SU(7) unified preon model. A gauge symmetry denoted by SUg(2) plays important roles in bringing the model close to reality. An assumption that post-hypercolor interactions of quarks and leptons are approximately left-right symmetric is made. It sheds new light on the generation structure and weak decays of quarks, in particular on the suppression of b-quark decays. Also discussed are possible effects on nucleon decays of the non-repetitive generation structure of our model.