A supersymmetric solution to the KARMEN time anomaly
High Energy Physics - Phenomenology
2011-02-16 v2
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 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.
Cite
@article{arxiv.hep-ph/9911365,
title = {A supersymmetric solution to the KARMEN time anomaly},
author = {Debajyoti Choudhury and Herbi Dreiner and Peter Richardson and Subir Sarkar},
journal= {arXiv preprint arXiv:hep-ph/9911365},
year = {2011}
}
Comments
13 pages, 7 postscript figures Note added commenting on recent NuTeV search for unstable particle emitted in pion decay; Accepted for publication in Phys. Rev. D