Constraining R Violation from Anomalous Abelian Family Symmetry
Abstract
Description
The patterns of R violation resulting from imposition of a gauged U(1) horizontal symmetry, on the minimal supersymmetric standard model are systematically analyzed. We concentrate on a class of models with integer U(1) charges chosen to reproduce the quark masses and mixings as well as charged lepton masses exactly or approximately. The U(1) charges are further restricted from the requirement that very large bilinear lepton number violating terms should not be allowed in the super-potential. It is shown that all the trilinear $λ'_{ijk}$ and all but at most two trilinear $λ_{ijk}$ couplings vanish or are enormously suppressed.
7 pages, talk given at 7th Workshop on High Energy Particle Phenomenology, HRI, Allahabad, India and XIV DAE Symposium, Hyderabad, India few references added
7 pages, talk given at 7th Workshop on High Energy Particle Phenomenology, HRI, Allahabad, India and XIV DAE Symposium, Hyderabad, India few references added