A supersymmetric solution to the KARMEN time anomaly

Details A supersymmetric solution to the KARMEN time anomaly A supersymmetric solution to the KARMEN time anomaly

1999-11-15

arxiv.org/abs/hep-ph/9911365v2

Phys.Rev.D61:095009,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 7 postscript figures Note added commenting on recent NuTeV search for unstable particle emitted in pion decay; Accep

Scientific paper

10.1103/PhysRevD.61.095009

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 M_1 and M_2 we find regions in the (M_1, M_2, 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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