Aerial view of the European XFEL accelerator complex, with the LUXE

a) Energy spectra of the γ ray photons at t=225 fs (blue curve)

PDF) LUXE: A new experiment to study non-perturbative QED

a) Energy spectra of the γ ray photons at t=225 fs (blue curve)

a) Energy of the quasimonoenergetic electron peak as a function of the

PDF) LUXE: A new experiment to study non-perturbative QED

PDF) LUXE: A new experiment to study non-perturbative QED

PDF) LUXE: A new experiment to study non-perturbative QED

a) Energy spectra of the γ ray photons at t=225 fs (blue curve)

Diagram of our proposed scheme for γ ray production. (a) Intense laser

Energy level scheme of Pr 3+ in glasses.