2020/10/31 by James P. Edwards, Anton Ilderton
Earth and Planetary Sciences · Engineering · Mathematics · Physics and Astronomy · #Field (mathematics) #High-pressure geophysics and materials #Laser-Plasma Interactions and Diagnostics #Mathematics #Particle Accelerators and Free-Electron Lasers #Particle physics #Physics #Quantum chromodynamics #Quantum electrodynamics #Resummation #hep-ph
paper · pdf · doi:10.1103/physrevd.103.016004
published as Phys. Rev. D 103, 016004 (2021) · V2: 14 pages, 6 PDF figures, matches published version
openalex publication_date 2021/01/05 · arxiv created 2021/01/14 · arxiv updated 2021/01/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Scattering processes in laser backgrounds are degenerate to the emission of unobservable photons collinear with the laser. We identify processes and observables for which such degeneracies factorize and exponentiate, obtaining the leading-order intensity dependence of these inclusive observables at high laser intensity, correct to all orders in the fine-structure constant (all loops, all emissions). The results show an exponential intensity dependence distinct from that predicted by the Narozhny-Ritus conjecture on the high-intensity behavior of quantum electrodynamics in strong fields.