1998/04/28 by Mike Bisset, Otto C. W. Kong, Otto C.W. Kong +2 · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1016/s0370-2693(98)00533-4
published as Phys.Lett.B430:274-280,1998 · LaTeX file plus postscript figure files, 17 pages; minor typographical changes, to appear in Physics Letters B
arxiv created 1998/04/28 · openalex publication_date 1998/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present a parametrization of the supersymmetric standard model without R-parity that permits efficient phenomenological analyses of the full model without a priori assumptions. Under the parametrization, which is characterized by a single vacuum expectation value for the scalar components of the Y=−1/2 superfields, the expressions for tree-level mass matrices are quite simple. They do not involve the trilinear R-parity violating couplings; however, the bilinear μi terms do enter and cannot be set to zero without additional assumptions. We set up a framework for doing phenomenology and show some illustrative results for fermion mass matrices and related bounds on parameters. We find in particular that large values of tanβ can suppress R-parity violating effects, substantially weakening experimental constraints.