Extremely high-energy bremsstrahlung in matter
High Energy Physics - Phenomenology
2026-05-08 v2
Abstract
The theory of bremsstrahlung by extremely high energy electrons passing through ordinary matter has been qualitatively incomplete. We revisit the suppression of bremsstrahlung by the Landau-Pomeranchuk-Migdal (LPM) effect, here accounting for quantum disruption of that effect from pair production. Our analysis covers the full range of ultra-relativistic electron and photon energies (subject to a few simplifying approximations).
Cite
@article{arxiv.2604.18685,
title = {Extremely high-energy bremsstrahlung in matter},
author = {Peter Arnold and Joshua Bautista and Omar Elgedawy and Shahin Iqbal},
journal= {arXiv preprint arXiv:2604.18685},
year = {2026}
}
Comments
6 pages, 2 figures. Main change from v1: biblio entry for companion paper [12] updated