Speaker
Mr
Saptarshi Chaudhuri
(Stanford University)
Description
We discuss DM Radio, a lumped-LC resonant search for axion and hidden-photon dark matter between 100 Hz and 300 MHz. We illustrate the detection concept and discuss design and fabrication of the Pilot detector, which will operate in liquid helium at 4 K over the next three years and probe hidden photons in a portion of this frequency range. We show results from a fixed-frequency resonator and present work on detector characterization, including a study of loss mechanisms, shielding performance, and dc SQUID amplifier noise. We discuss future plans to optimize DM Radio, in the context of fundamental limitations on electromagnetic searches for light-field dark matter.
| schaudh2@stanford.edu | |
| Funding source | Heising-Simons Foundation, Kavli Institute for Particle Astrophysics and Cosmology, SLAC Laboratory Directed Research and Development |
Primary author
Mr
Saptarshi Chaudhuri
(Stanford University)
Co-authors
Dr
Arran Phipps
(Stanford University)
Mr
Carl Dawson
(Stanford University)
Dr
Dale Li
(SLAC National Accelerator Laboratory)
Dr
Hsiao-Mei Cho
(SLAC National Accelerator Laboratory)
Prof.
Kent Irwin
(Stanford University)
Prof.
Peter Graham
(Stanford University)
Mr
Stephen Kuenstner
(Stanford University)
Prof.
Surjeet Rajendran
(University of California, Berkeley)
