Neutrino flavor oscillations and spin rotation in matter and electromagnetic field
arXiv:1906.09351 · doi:10.1103/PhysRevD.101.013003
Abstract
We obtain a relativistically covariant wave equation for neutrinos in dense matter and electromagnetic field, which describes both flavor oscillations and neutrino spin rotation. Using this equation we construct a quasi-classical theory of these phenomena. We obtain the probabilities of arbitrary spin-flavor transitions assuming the external conditions to be constant. We demonstrate that the resonance behavior of the transition probabilities is possible only when the neutrino flavor states cannot be described as superpositions of the mass eigenstates. We discover that a resonance, which is similar to the Mikheev-Smirnov-Wolfenstein resonance, takes place for neutrinos in magnetic field due to the transition magnetic moments. This resonance gives an opportunity to determine, whether neutrinos are Dirac or Majorana particles.
21 pages, 12 figures, LaTeX. Final version, misprints are corrected
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Cited by in corpus (6)
- Cosmic neutrino flux and spin flavor oscillations in intergalactic medium
- Resonance enhancement of neutrino oscillations due to transition magnetic moments
- T violation without complex entries in lepton mixing matrix
- Three-flavor, Full Momentum Space Neutrino Spin Oscillations in Neutron Star Mergers
- Dynamic fermion flavor mixing through transition dipole moments
- Spin rotation of neutrinos produced by compact magnetized astrophysical objects