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ON MIXING ANGLES AND MAGNETIC MOMENT OF HEAVY TAU NEUTRINO
1998
Modern Physics Letters A
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If the magnetic moment of unstable tau neutrinos with the mass of O(MeV) is in the region of 10^-8μ_B≲μ_ν_τ≲ 10^-6μ_B, it is compatible with the present experimental and cosmological bounds. It is pointed out here, that if the tau neutrino has such a large magnetic moment and can oscillate into a neutrino of another flavour the results from ν e scattering experiment at LAMPF constrain the tau neutrino mixing angles to sin^22θ_e τ≲ 2× 10^-6 - 2× 10^-2 and sin^22θ_μτ≲ 10^-6 - 10^-2 depending on the magnetic moment value in the allowed region.
doi:10.1142/s0217732398001868
fatcat:pzb6t5ln7ffannmcmczy35st2i