Search for Solar Axions by the CERN Axion Solar Telescope with 3He Buffer Gas:
Closing the Hot Dark Matter Gap
Arik, M.; Aune, S.; Barth, K.; Belov, A.; Borghi, S.; Bräuninger, H.; Cantatore, G.; Carmona, J. M.; Cetin, S. A.; Collar, J. I.; and 65 coauthors
PHYSICAL REVIEW LETTERS / 0031-9007 / 112 / 201403