Kavli Affiliate: Chao-Lin Kuo
| First 5 Authors: C. Bartram, C. Boutan, T. Braine, J. H. Buckley, T. J. Caligiure
| Summary:
We report the results of a QCD axion dark matter search with discovery
ability for Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) axions using an axion
haloscope. Sub-Kelvin noise temperatures are reached with an ultra low-noise
Josephson parametric amplifier cooled by a dilution refrigerator. This work
excludes (with a 90% confidence level) DFSZ axions with masses between 3.27 to
3.34 {mu}eV, assuming a standard halo model with a local energy density of
0.45 GeV/cm${}^3$ made up 100% of axions.
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