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

Electroweak session of the 56th Rencontres de Moriond, Moriond 2022 EW, La Thuile, Italy, 12 Mar 2022 - 19 Mar 2022; 4 pp. (2022).
The LUXE experiment (Laser Und XFEL Experiment) is a new experiment in planning at DESY Hamburg using the electron beam of the European XFEL. At LUXE, the aim is to study collisions between a high-intensity optical laser and up to $16.5\,\textrm{GeV}$ electrons from the Eu.XFEL electron beam, or, alternatively, high-energy secondary photons. The physics objectives of LUXE are to measure 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. Additionally, the high-intensity Compton photon beam of LUXE can be used to search for physics beyond the Standard Model.}