Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 79: Experimental methods IV
T 79.2: Talk
Thursday, April 2, 2020, 16:45–17:00, H-ÜR 1
Probing Non-Perturbative QED with LUXE — •Marius Hoffmann1 and Beate Heinemann1,2 — 1DESY, Hamburg — 2Albert-Ludwigs-Universität Freiburg
In the presence of very strong fields, quantum electrodynamics can not rely on perturbation theory. Instead, nonlinear effects have to be considered. The LUXE (Laser Und European XFEL) Experiment aims to use the high-quality electron beam of the XFEL accelerator to probe this strong-field regime.
With LUXE, field strengths above the Schwinger critical limit can be achieved in two different experimental setups: Interaction of the electron beam with a high-intensity laser or interaction of a photon beam, produced via bremsstrahlung, and the laser.
The two setups open up the possibility to measure both nonlinear Compton scattering and nonlinear Breit-Wheeler pair production. These processes are relevant for example around heavy astronomic objects or future particle colliders. In preparation for the experiment, physics simulations and design studies are performed for the different physics processes of interest.
After giving an introduction to the experiment and setups, this talk focuses on the simulation results for the Breit-Wheeler process after the laser-beam interaction.