From ATLASexperiment https://twitter.com/ATLASexperiment on Twitter: Light-by-light scattering is a very rare process in which particles of light interact and change direction. In a new result presented at #, ATLAS used - scattering to search for an exciting new phenomenon: # particles. Learn more: http://atlas.cern/updates/physics-briefing/light-scattering-light-constrains-axion-particles https://twitter.com/ATLASexperiment/status/1264938803434840065/photo/1 https://chirp.cooleysekula.net/attachment/65339