Neutrino spin and spin-flavour oscillations in transversal matter currents with standard and non-standard interactions

TL;DR

This paper investigates novel neutrino spin and spin-flavour oscillations caused by transversal matter currents, including effects of non-standard interactions, and explores resonance amplification mechanisms.

Contribution

It introduces a systematic quantum analysis of neutrino oscillations induced by transversal matter currents, including non-standard interactions and resonance effects.

Findings

Neutrino spin-flavour oscillations can be generated by transversal matter currents.

Resonance amplification of oscillations is possible with longitudinal matter currents and magnetic fields.

Non-standard neutrino interactions influence the oscillation phenomena.

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