Electron-positron bremsstrahlung and pair creation in very high magnetic fields

TL;DR

This paper calculates cross-sections for scattering, bremsstrahlung, and pair creation in extremely high magnetic fields to understand proton production at pulsar polar caps, incorporating the Landau-Pomeranchuk-Migdal effect.

Contribution

It provides new calculations of interaction cross-sections at high magnetic fields, including the Landau-Pomeranchuk-Migdal effect, relevant for pulsar physics.

Findings

Cross-sections for Rutherford scattering, bremsstrahlung, and pair creation are computed at high magnetic fields.

The Landau-Pomeranchuk-Migdal effect is incorporated into the electron Green function.

Results are relevant for understanding particle production in pulsar polar caps.

Abstract

Cross-sections for Rutherford scattering, Coulomb bremsstrahlung and pair creation, have been calculated at very high magnetic fields in order to investigate the photo-production of protons at the polar caps of pulsars whose spin is antiparallel with the polar magnetic flux density. The Landau-Pomeranchuk-Migdal effect at very high magnetic fields is included in a simple electron Green function.