Collective neutrino oscillations in moving and polarized matter

TL;DR

This paper develops a comprehensive theoretical framework for understanding collective neutrino oscillations in dense, moving, and polarized matter, including magnetic interactions, to improve modeling of neutrino behavior in astrophysical environments.

Contribution

It introduces detailed Hamiltonians accounting for matter polarization, motion, and magnetic moments, advancing the theoretical understanding of neutrino oscillations in complex media.

Findings

Derived interaction Hamiltonians for polarized and moving matter

Identified mechanisms for neutrino spin precession

Provided formulas for neutrino magnetic moment interactions

Abstract

We consider neutrino evolution master equations in dense moving and polarized matter consisted of electrons, neutrons, protons and neutrinos. We also take into account the neutrino magnetic moment interaction with a magnetic field. We point out the mechanisms responsible for the neutrino spin precession and provide the expressions for the corresponding interaction Hamiltonians that should be taken into account in theoretical treatments of collective neutrino oscillations.