Relativistic quantum mechanics description of neutrino spin-flavor oscillations in various external fields

TL;DR

This paper develops a relativistic quantum mechanics framework to analyze neutrino spin-flavor oscillations in external electromagnetic fields, deriving exact transition probabilities and comparing results for different magnetic moments.

Contribution

It introduces a new exact solution to the Dirac-Pauli equation for neutrinos in external fields, enabling precise calculation of oscillation probabilities.

Findings

Derived explicit transition probabilities for neutrino spin-flavor oscillations.

Analyzed effects of different neutrino magnetic moments on oscillation behavior.

Compared results with existing literature to validate the approach.

Abstract

We review the application of the relativistic quantum mechanics method for the description of neutrino oscillations for the studies of spin-flavor oscillations in background matter under the influence of a plane electromagnetic wave. Basing on the new exact solution of the Dirac-Pauli equation for a massive neutrino in the given external fields, we derive the transition probabilities for spin and spin-flavor oscillations. The obtained expressions are analyzed for different types of the neutrino magnetic moments. Our results are compared with findings of other authors.