Kavli Affiliate: Chao-Lin Kuo
| First 5 Authors: ADMX Collaboration, G. Carosi, C. Cisneros, N. Du, S. Durham
| Summary:
Axion dark matter can satisfy the conditions needed to account for all of the
dark matter and solve the strong CP problem. The Axion Dark Matter eXperiment
(ADMX) is a direct dark matter search using a haloscope to convert axions to
photons in an external magnetic field. Key to this conversion is the use of a
microwave resonator that enhances the sensitivity at the frequency of interest.
The ADMX experiment boosts its sensitivity using a dilution refrigerator and
near quantum-limited amplifier to reduce the noise level in the experimental
apparatus. In the most recent run, ADMX searched for axions between 1.10-1.31
GHz to extended Kim-Shifman-Vainshtein-Zakharov (KSVZ) sensitivity. This Letter
reports on the results of that run, as well as unique aspects of this
experimental setup.
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