Random magnetic fields inducing solar neutrino spin-flavor precession in a three generation context

Abstract

We study the effect of random magnetic fields in the spin-flavor precession of solar neutrinos in a three generation context, when a non-vanishing transition magnetic moment is assumed. While this kind of precession is strongly constrained when the magnetic moment involves the first family, such constraints do not apply if we suppose a transition magnetic moment between the second and third families. In this scenario we can have a large non-electron anti-neutrino flux arriving on Earth, which can lead to some interesting phenomenological consequences, as, for instance, the suppression of day-night asymmetry. We have analyzed the high energy solar neutrino data and the KamLAND experiment to constrain the solar mixing angle, and solar mass difference, and we have found a larger shift of allowed values.

10 pages, 3 figures

References in corpus (7)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion
• Reactor Measurement of theta_12; Principles, Accuracies and Physics Potentials
• Electron Antineutrino Search at the Sudbury Neutrino Observatory
• Enhanced solar anti-neutrino flux in random magnetic fields
• Reactor measurement of θ_{12}; Secret of the power
• SNO, SuperKamiokande data, antineutrinos and sterile neutrinos

Cited by in corpus (5)

• Neutrino electromagnetic properties
• Electromagnetic neutrinos in laboratory experiments and astrophysics
• Neutrino electromagnetic interactions: a window to new physics
• New limits on neutrino magnetic moment through non-vanishing 13-mixing
• Neutrino oscillation in the presence of background classical sources