Neutrino oscillations in astrophysical environment accounting for neutrino charge radius and anapole moment

TL;DR

This paper derives an effective Hamiltonian for neutrino oscillations in astrophysical environments, incorporating effects of neutrino charge radius and anapole moment, with potential astrophysical applications.

Contribution

It introduces a novel Hamiltonian that accounts for neutrino charge radius and anapole moment effects in spin oscillations, expanding the theoretical framework for neutrino behavior in astrophysics.

Findings

Derived an effective Hamiltonian including charge radius and anapole effects

Provided expressions for neutrino spin oscillation probabilities

Discussed potential astrophysical implications

Abstract

We derive an effective neutrino evolution Hamiltonian and corresponding expression for neutrino spin oscillations probabilities accounting for neutrino interactions with external electric current due to neutrino charge radii and anapole moment. The results are interesting for possible applications in astrophysics.