Low-energy neutrino-photon inelastic interactions

TL;DR

This paper calculates the polarized amplitudes and cross sections of neutrino-photon interactions across energy regimes, providing insights relevant for supernova physics and exploring potential beyond Standard Model effects.

Contribution

It presents a comprehensive computation of neutrino-photon inelastic processes using an effective Lagrangian approach for low energies and complete calculations for higher energies, including beyond Standard Model considerations.

Findings

Calculated polarized amplitudes and cross sections for key neutrino-photon processes.

Provided results applicable to supernova dynamics.

Discussed potential effects of physics beyond the Standard Model.

Abstract

The computation of the polarized amplitudes and cross section of the processes $\gamma\nu\to\gamma\gamma \nu$, $\gamma\gamma \to \gamma\nu\bar\nu$ and $\nu\bar\nu \to \gamma\gamma\gamma$ is described. We used an effective lagrangian approach for energies below the threshold for $e^+e^-$ pair production and the complete computation at higher energies for application in supernova dynamics. Leading contributions of physics beyond the SM are also commented.