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A Simple Phenomenological Parametrization of Supersymmetry without R-Parity

Mike Bisset·Otto C. W. Kong·Cosmin Macesanu·Lynne H. Orr
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Abstract

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 μ_i 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 tan(beta) can suppress R-parity violating effects, substantially weakening experimental constraints.

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Mike Bisset, Otto C. W. Kong, Cosmin Macesanu, Lynne H. Orr. 1998-04-28. A Simple Phenomenological Parametrization of Supersymmetry without R-Parity. https://doi.org/10.1016/s0370-2693(98)00533-4

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