Decay of photon with high as well as low energy

TL;DR

This paper investigates how photons decay in magnetic fields, showing that high-energy photons decay into electron-positron pairs while lower-energy photons decay into neutrino-antineutrino pairs, with decay rates calculated for both.

Contribution

It provides a detailed analysis of photon decay channels in magnetic fields, including decay rates and Feynman diagram calculations for different energy regimes.

Findings

High-energy photons (>1 MeV) decay into electron-positron pairs.

Low-energy photons (<1 MeV) decay into neutrino-antineutrino pairs.

Decay rates are quantitatively calculated for both processes.

Abstract

The decay of photon by the influence of magnetic field is considered. It is shown here that if the photon energy is grater than 1 MeV then photon can decay electron positron pair, but if it remains below 1 MeV then photon decays into neutrino antineutrino pair. The decay rates for both of the processes are calculated. All possible Feynman diagrams are taken into account to construct the matrix element for either of the processes. In the second process all three type of neutrinos are considered. The significance of these processes are discussed briefly.