This paper reports on a cavity haloscope search for dark matter axions in the galactic halo in
the mass range 2.81–3.31 µeV . This search excludes the full range of axion-photon coupling values predicted in benchmark models of the invisible axion that solve the strong CP problem of quantum chromodynamics. Unprecedented sensitivity in this higher mass range is achieved by deploying an ultra low-noise Josephson parametric amplifier as the first-stage signal amplifier.
Revised: April 7, 2020 |
Published: March 13, 2020
Citation
Braine T., R. Cervantes, N. Crisosto, N. Du, S. Kimes, L. Rosenberg, and G.A. Rybka, et al. 2020.Extended Search for the Invisible Axion with the Axion Dark Matter Experiment.Physical Review Letters 124, no. 10:Article No. 101303.PNNL-SA-151942.doi:10.1103/PhysRevLett.124.101303