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A supersymmetric solution to the KARMEN time anomaly

Debajyoti Choudhury, Herbi Dreiner, Peter Richardson, Subir Sarkar

hep-pharXiv:hep-ph/9911365

Abstract

We interpret the KARMEN time anomaly as being due to the production of a (dominantly bino) neutralino with mass 33.9 MeV, which is the lightest supersymmetric particle but decays into 3 leptons through the violation of R-parity. For independent gaugino masses M1 and M2 we find regions in the (M1, M2, mu, tan beta) parameter space where such a light neutralino is consistent with all experiments. Future tests of this hypothesis are outlined.

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