LUXE: A new experiment to study non-perturbative QED in $e^{-}$-laser and $\gamma$-laser collisions

TL;DR

LUXE is a planned experiment at DESY Hamburg to explore non-perturbative QED phenomena, such as electron-positron pair creation, using high-intensity laser and electron or photon collisions.

Contribution

It introduces a new experimental setup to investigate strong-field QED effects and potential beyond Standard Model physics at unprecedented laser intensities.

Findings

Design of the LUXE experimental setup

Potential to observe non-perturbative QED phenomena

Capability to search for new physics beyond the Standard Model

Abstract

The LUXE experiment (Laser Und XFEL Experiment) is a new experiment in planning at DESY Hamburg using the electron beam of the European XFEL. LUXE is intended to study collisions between a high-intensity optical laser and up to 16.5 GeV electrons from the Eu.XFEL electron beam, or, alternatively, high-energy secondary photons. The physics objective of LUXE are processes of Quantum Electrodynamics (QED) at the strong-field frontier, where QED is non-perturbative. This manifests itself in the creation of physical electron-positron pairs from the QED vacuum. LUXE intends to measure the positron production rate in a new physics regime at an unprecedented laser intensity. Parasitically, the high-intensity Compton photon beam of LUXE can be used to search for physics beyond the Standard Model.