SU(3)-symmetry breaking and nonleptonic decays in the quark-density model

Abstract

The phenomenology of the $p$-wave nonleptonic decays in the quark-density model is reviewed. We find that a good fit can be obtained by considering contributions arising due to SU(3) breaking either in the hadronic mass factors or at the strong vertices. However, when considered simultaneously, the two effects tend to cancel each other. It seems impossible to avoid the Coleman-Glashow theorem, in any consistent manner, if the symmetry-breaking tadpoles are introduced explicitly in the Hamiltonian.