Tau neutrino magnetic moments from the Super-Kamiokande and $\nu$ e-scattering data

Abstract

Combined results on ${\nu }_{\mu }\to {\nu }_{\tau }$ oscillations and $\nu e$-scattering from the Super-Kamiokande and LAMPF experiments, respectively, limit the Dirac ${\nu }_{\tau }$ diagonal magnetic moment to ${\mu }_{{\nu }_{\tau }}<1.9\times 10^{-9}{\mu }_B$. For the scheme with 3 Majorana neutrinos the LAMPF results allow the limitation of effective ${\nu }_{\tau }$ magnetic moment to ${\mu }_{{\nu }_{\tau }}<7.6\times 10^{-10}{\mu }_B$. The moments in the scheme with additional Majorana light sterile neutrinos as well as experiments on stimulated radiative neutrino conversion are also discussed.

12 pages, To appear in Phys. Lett. B

References in corpus (6)

• Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days
• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Neutrino magnetic moments, flavor mixing, and the SuperKamiokande solar data
• Limits on the magnetic moment of sterile neutrino and two-photon neutrino decay
• Bound on the tau neutrino magnetic moment from the Super-Kamiokande data
• Bounds and Implications of Neutrino Magnetic Moments from Atmospheric Neutrino Data

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• A New Upper Limit for the Tau-Neutrino Magnetic Moment
• Three-generation study of neutrino spin-flavor conversion in supernova and implication for neutrino magnetic moment
• Bounds on neutrino magnetic moment tensor from solar neutrinos
• Stellar Energy Loss Rates from Photoneutrino Process in Minimal Extension Standard Model