Bounds on heavy axions with an X-ray free electron laser
High Energy Physics - Phenomenology
2025-02-11 v4 High Energy Physics - Experiment
Atomic Physics
Instrumentation and Detectors
Abstract
We present new exclusion bounds obtained at the European X-ray Free Electron Laser facility (EuXFEL) on axion-like particles (ALPs) in the mass range 10^{-3} eV < m_a < 10^4 eV. Our experiment exploits the Primakoff effect via which photons can, in the presence of a strong external electric field, decay into axions, which then convert back into photons after passing through an opaque wall. While similar searches have been performed previously at a 3^rd generation synchrotron, our work demonstrates improved sensitivity, exploiting the higher brightness of X-rays at EuXFEL.
Keywords
Cite
@article{arxiv.2404.17333,
title = {Bounds on heavy axions with an X-ray free electron laser},
author = {Jack W. D. Halliday and Giacomo Marocco and Konstantin A. Beyer and Charles Heaton and Motoaki Nakatsutsumi and Thomas R. Preston and Charles D. Arrowsmith and Carsten Baehtz and Sebastian Goede and Oliver Humphries and Alejandro Laso Garcia and Richard Plackett and Pontus Svensson and Georgios Vacalis and Justin Wark and Daniel Wood and Ulf Zastrau and Robert Bingham and Ian Shipsey and Subir Sarkar and Gianluca Gregori},
journal= {arXiv preprint arXiv:2404.17333},
year = {2025}
}
Comments
7 pages, 6 figures