Neutrino- Photon Interactions at Low Energy

TL;DR

This paper investigates low-energy neutrino-photon interactions in a magnetic field, finding they are too weak to impact pulsar physics, with implications for understanding neutrino behavior in astrophysical environments.

Contribution

It provides a theoretical analysis of neutrino-photon interactions under magnetic fields, highlighting their negligible effect in astrophysical contexts.

Findings

Neutrino-photon interactions are weak at low energies.

Magnetic fields induce effective neutrino-photon vertices.

Interactions are insignificant for pulsar physics.

Abstract

We discuss $\nu - \gamma$ interactions in the presence of a homogeneous magnetic field with energies less than pair production threshold. The neutrinos are taken to be massless with only standard-model couplings. The magnetic field fulfills the dual purpose of inducing an effective neutrino-photon vertexes and of modifying the photon dispersion relation. Our conclusion is $\nu - \gamma$ interactions are too weak to be of importance for pulsar physics.