Could the $τ$ be substantially different from $e$ and $μ$ in the supersymmetric standard model?

Details Could the $τ$ be substantially different from $e$ and $μ$ in the supersymmetric standard model? Could the $τ$ be substantially different from $e$ and $μ$ in the supersymmetric standard model?

1998-11-27

arxiv.org/abs/hep-ph/9811499v2

Nucl.Phys.Proc.Suppl. 76 (1999) 201-206

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages in postscript. Talk given by O.K. at Tau98, to be published in the proceedings; reprint number added

Scientific paper

10.1016/S0920-5632(99)00459-4

R-parity stands as an ad hoc assumption in the most popular version of the supersymmetric standard model. More than fifteen years' studies of R-parity violations have been restricted to various limiting scenarios. We illustrate how the single-VEV parametrization provides a workable framework to analyze the phenomenology of the complete theory of supersymmetry without R-parity. In our comprehensive study of various aspects of the resulting leptonic phenomenology at tree-level, we find that the physical $\tau$ lepton could actually bear substantial gaugino and higgsino components, making it very different from the $e$ and the $\mu$.

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