Abstract
After a brief history of two known types of neutrino mixing and oscillations, including neutrino spin and spin-flavour oscillations in the transversal magnetic field, we perform systematic study of a new phenomenon of neutrino spin and spin-flavour oscillations engendered by the transversal matter currents on the bases of the developed quantum treatment of the phenomenon. Possibilities for the resonance amplification of these new types of oscillations by the longitudinal matter currents and longitudinal magnetic fields are analyzed. Neutrino spin-flavour oscillations engendered by the transversal matter currents in the case of non-standard interactions of neutrinos with background matter are also considered
Highlights
Neutrino mixing and oscillations are no doubt among of the most exciting and intriguing phenomena of the present fundamental physics
We consider in detail the new possibility of the appearance of spin and spin-flavor neutrino oscillations engendered by weak interactions of neutrinos with the medium in the case when there are the transversal currents of matter
The existence of the discussed effect of neutrino spin oscillations engendered by the transversal matter current was confirmed in a series of recent papers [4,5,6,7,8] where its possible impact in astrophysics was discussed
Summary
Neutrino mixing and oscillations are no doubt among of the most exciting and intriguing phenomena of the present fundamental physics. The existence of the discussed effect of neutrino spin oscillations engendered by the transversal matter current was confirmed in a series of recent papers [4,5,6,7,8] where its possible impact in astrophysics was discussed. Given these circumstances there is an urgent need for a systematic and consistent presentation of the theory of this new phenomenon.
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