Probing new physics at the LUXE experiment

TL;DR

The LUXE experiment at DESY aims to explore strong-field QED and search for physics beyond the standard model, such as axion-like particles, using high-intensity laser and electron/photon beams.

Contribution

It proposes using the LUXE experiment's photon flux to probe axion-like particles up to 350 MeV mass, extending beyond current experimental limits.

Findings

Probing axion-like particles up to 350 MeV mass.

Achieving sensitivity comparable to future collider experiments.

Demonstrating the potential of LUXE for new physics searches.

Abstract

The proposed Laser Und XFEL (LUXE) Experiment at DESY, Hamburg, aims to probe QED in the strong field non-perturbative regime. This regime will be created in collisions between high-intensity laser pulses and high-energy electron or photon beams coming from the Eu.XFEL setup. This experiment comes with a unique opportunity to probe physics beyond the standard model. In this proceeding, it is described that with the help of the large photon flux generated at LUXE, axion-like-particles can be probed up to a mass of 350 MeV and with a photon coupling of $3\times10^{-6}$ GeV$^{-1}$. This reach in parameter space is comparable to the projected reach of future experiments like FASER2 in the HL-LHC and NA62 in the dump mode.