Particle Accelerators and Free-Electron Lasers Open access Peer reviewed

LUXE: a high-precision experiment to study non-perturbative QED in electron–laser and photon–laser collisions

Aleksander Filip Zarnecki

The European Physical Journal Plus | Sep 25, 2026

Abstract

Abstract

Abstract The Laser Und XFEL Experiment (LUXE), in planning at DESY Hamburg, is intended to study quantum electrodynamics (QED) in strong electromagnetic fields and in particular the transition from the perturbative to the non-perturbative domain. In the non-perturbative regime, electron–positron pairs tunnel out of the vacuum in a manner akin to the Schwinger process. The experiment will make precision measurements of the photon and positron rates in collisions between a high-intensity laser pulse and the 16.5 GeV electron beam of the European XFEL, or the high-energy secondary photons it produces. This contribution provides an overview and update on the work of the LUXE collaboration, as the experiment moves towards implementation.

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Aleksander Filip Zarnecki

first | University of Warsaw | ORCID 0000-0001-8975-9483

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@article{Zarnecki2026LUXE,
  title = {LUXE: a high-precision experiment to study non-perturbative QED in electron–laser and photon–laser collisions},
  author = {Aleksander Filip Zarnecki},
  journal = {The European Physical Journal Plus},
  year = {2026},
  doi = {10.1140/epjp/s13360-026-08312-1},
  url = {https://doi.org/10.1140/epjp/s13360-026-08312-1}
}

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