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Limits on the Mixing of Tau Neutrino to Heavy Neutrinos

J. Orloff·A. Rozanov·C. Santoni
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Abstract

Limits at 90 % c.l. on the square of the mixing strength |U_tau4|^2 between nu_tau and a mostly isosinglet heavy neutrino with mass in the range 10-290 MeV/c^2 are reported. The results were derived using the negative result of a search for neutral particles decaying into two electrons conducted by the CHARM collaboration in a neutrino beam dump experiment. Upper limits ~10^-4 were obtained for neutrino masses larger than 160 MeV/c^2.

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J. Orloff, A. Rozanov, C. Santoni. 2002-08-07. Limits on the Mixing of Tau Neutrino to Heavy Neutrinos. https://doi.org/10.1016/s0370-2693(02)02769-7

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