Speaker
Benjamin Brubaker
(Yale University)
Description
I will report on the first results from a new search for axion dark matter using a microwave cavity detector at ~5 GHz frequencies. This detector has achieved near-quantum-limited sensitivity using a dilution refrigerator and Josephson parametric amplifier, and excluded axion-photon-photon couplings a factor of 2.3 above the benchmark KSVZ model in the mass range 23.55 μeV< m <24.0 μeV. These are the first limits within the QCD axion model band in the mass decade above 10 μeV.
Primary author
Benjamin Brubaker
(Yale University)