Challenges and Opportunities for the Next Generation of Photon Regeneration Experiments

TL;DR

Next-generation photon regeneration experiments aim to significantly improve sensitivity to ultra-light particles like axions, leveraging advances in laser, detector, and magnet technologies to explore new physics beyond astrophysical constraints.

Contribution

This paper reviews the challenges and opportunities for advancing photon regeneration experiments with new technologies and methodologies.

Findings

Potential to explore unexcluded parameter space

Advances in laser and detector technology

Recycling of accelerator magnets for experiments

Abstract

Photon regeneration experiments searching for signatures of oscillations of photons into hypothetical very weakly interacting ultra-light particles, such as axions, axion-like and hidden-sector particles, have improved their sensitivity considerably in recent years. Important progress in laser and detector technology as well as recycling of available magnets from accelerators may allow a big further step in sensitivity such that, for the first time, laser light shining through a wall experiments will explore territory in parameter space that has not been excluded yet by astrophysics and cosmology. We review these challenges and opportunities for the next generation experiments.