Neutrino propagation in moving and polarized matter

TL;DR

This paper develops a comprehensive theoretical framework for neutrino propagation in moving and polarized matter, crucial for understanding neutrino behavior in astrophysical sources like supernovae and gamma-ray bursts.

Contribution

It introduces an exact spin integral of motion for the first time, enabling systematic classification and analysis of neutrino states in complex media.

Findings

Derived neutrino dispersion relations in moving and polarized matter.

Provided a systematic classification of neutrino states under these conditions.

Facilitated analysis of phenomena like neutrino oscillations and electromagnetic radiation.

Abstract

The rapid development of neutrino astronomy, which is expressed, among other things, in the emergence of new neutrino mega-projects capable of efficient registering astrophysical neutrino fluxes requires a detailed knowledge of neutrino evolution inside neutrino sources (type II supernovae, gamma-ray bursts). This evolution can be influenced by many factors, each should be accounted for by a relevant theory. In this work, we develop the theory of neutrino propagation in moving and/or polarized matter by introducing for the first time an exact spin integral of motion. This enables us to obtain the neutrino dispersion under these conditions and resolve it for most important cases. Our approach opens up the possibility to consistently classify neutrino states in moving and/or polarized medium and, as a consequence, to give a systematic description of the related physical phenomena (e.g., neutrino oscillations, neutrino electromagnetic radiation).