http://arxiv.org/abs/2110.06096
We report the results from a haloscope search for axion dark matter in the $3.3\text{-}4.2~{\mu}$eV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of “invisible” axion dark matter, the KSVZ model. This sensitivity is achieved using a large-volume cavity, a superconducting magnet, an ultra low noise Josephson parametric amplifier, and sub-Kelvin temperatures. The validity of our detection procedure is ensured by injecting and detecting blind synthetic axion signals.
A. Collaboration, C. Bartram, T. Braine, et. al.
Wed, 13 Oct 21
67/80
Comments: 6 pages, 5 figures