Author/Authors :
Sulc، نويسنده , , M. and Pugnat، نويسنده , , P. and Ballou، نويسنده , , R. and Deferne، نويسنده , , G. and Duvillaret، نويسنده , , L. and Flekova، نويسنده , , L. and Finger Jr.، نويسنده , , M. and Finger، نويسنده , , M. and Hosek، نويسنده , , J. and Husek، نويسنده , , T. and Jost، نويسنده , , Lisa R. and Kral، نويسنده , , M. and Kunc، نويسنده , , S. and Macuchova، نويسنده , , Bijoy K. and Meissner، نويسنده , , K.A. and Morville، نويسنده , , J. and Romanini، نويسنده , , D. L. Schott، نويسنده , , M. and Siemko، نويسنده , , A. and Slunecka، نويسنده , , M. and Vitrant، نويسنده , , G. and Zicha، نويسنده , , J.، نويسنده ,
Abstract :
Laser-based experiment OSQAR in CERN is aimed to the search of the axions by two methods. The photon regeneration experiment is using two LHC dipole magnets of the length 14.3 m and magnetic field 9.5 T equipped with an optical barrier at the end of the first magnet. It looks as light shining through the wall. No excess of events above the background was detected at this arrangement. Nevertheless, this result extends the exclusion region for the axion mass. The second method wants to measure the ultra-fine vacuum magnetic birefringence for the first time. An optical scheme with electro-optical modulator has been proposed, validated and subsequently improved. Cotton–Mouton constant for air was determined in this experiment setup.
