Search for Two-Photon Interaction with Axionlike Particles Using   High-Repetition Pulsed Magnets and Synchrotron X Rays
  We report on new results of a search for two-photon interaction with axionlike particles (ALPs). The experiment was carried out at a synchrotron radiation facility using a "light shining through a wall (LSW)" technique. For this purpose, we have developed a novel pulsed-magnet system, composed of multiple racetrack-magnets and a transportable power supply. It produces fields of about 10 T over 0.8 m with a high repetition rate of 0.2 Hz and yields a new method of probing vacuum with high intensity fields. The data obtained with a total of 27,676 pulses provide a limit on the ALP-two-photon coupling constant that is more stringent by a factor of 5.2 compared to a previous x-ray LSW limit for the ALP mass below 0.1 eV. 
T. Inada, T. Yamazaki, T. Namba, S. Asai, T. Kobayashi, K. Tamasaku,   Y. Tanaka, Y. Inubushi, K. Sawada, M. Yabashi, T. Ish...
hep-ex physics.ins-det physics.optics