Jul 22 – 27, 2018
MacMillian
US/Eastern timezone

First Results from the ADMX-G2 Axion Search

Jul 26, 2018, 11:50 AM
25m
117 (MacMillian)

117

MacMillian

Brown University Providence, Rhode Island, USA
Talk Direct Detection 4.2 Plenary

Speaker

Andrew Sonnenschein (Fermi National Accelerator Laboratory)

Description

We report on results from the first run of the ADMX-G2 experiment, a haloscope search for dark matter axions. The search excludes the range of axion-photon couplings predicted by the DFSZ model for masses between 2.66 and 2.81 μeV. This unprecedented sensitivity is achieved by operating a large-volume haloscope at sub-kelvin temperatures, thereby reducing thermal noise as well as the excess noise from the ultra-low-noise SQUID amplifier used for the signal power readout. Future runs will extend sensitivity over a wide range of axion masses.

Primary author

Andrew Sonnenschein (Fermi National Accelerator Laboratory)

Presentation materials