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Limits on the Mixing of Tau Neutrino to Heavy Neutrinos

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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Submitted on : Tuesday, January 14, 2003 - 4:03:43 PM
Last modification on : Tuesday, October 19, 2021 - 10:50:10 PM

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Jean Orloff, A. Rozanov, C. Santoni. Limits on the Mixing of Tau Neutrino to Heavy Neutrinos. Physics Letters B, Elsevier, 2002, 550, pp.8-15. ⟨in2p3-00012424⟩

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