We revise the bounds on heavy sterile neutrinos, especially in the case of their mixing with muon neutrinos in the charged current. We summarize the present experimental limits, and we reanalyze the existing data from the accelerator neutrino experiments and from Super-Kamiokande to set new bounds on a heavy sterile neutrino in the range of masses from 8 MeV to 390 MeV. We also discuss how the future accelerator neutrino experiments can improve the present limits.
@article{arxiv.hep-ph/0405198,
title = {Bounds on heavy sterile neutrinos revisited},
author = {Alexander Kusenko and Silvia Pascoli and Dmitry Semikoz},
journal= {arXiv preprint arXiv:hep-ph/0405198},
year = {2010}
}
Comments
14 pages, 6 figures; a detailed and expanded version