Jun 14 – 18, 2021
Online Workshop
Europe/Rome timezone

BREAD: Broadband Reflector Experiment for Axion Detection

Jun 15, 2021, 5:00 PM
Online Workshop

Online Workshop


Stefan Knirck (Fermi National Accelerator Laboratory)


We present a novel dish antenna for broadband ~meV-eV range axion and wave-dark matter detection, which allows to utilize state-of-the-art high-field solenoidal magnets. At these masses it is difficult to scale up traditional resonator setups to the required volume. However, at metallic surfaces in a high magnetic field dark matter axions can convert to photons regardless of axion mass. These photons can be successively focused onto a detector (dish antenna concept). In this talk we present progress on BREAD, a dish antenna using a $\sim 10\,{\rm m}^2$ conversion area with a novel rotationally symmetric parabolic focusing reflector designed to take advantage of high-field solenoidal magnets. We discuss viable low-noise photon detectors and show progress towards smaller first stage hidden photon experiments with expected sensitivity to unexplored hidden photon couplings. We estimate sensitivities for future large-scale experiments.

Speaker Stefan Knirck

Primary authors

Stefan Knirck (Fermi National Accelerator Laboratory) Pete Barry (ANL) Daniel Bowring (Fermi National Accelerator Laboratory) Gianpaolo Carosi Clarence Chang (Argonne National Lab) Aaron Chou Kristin Dona (University of Chicago) Mohamed Hassan (Fermi National Accelerator Laboratory) Rakshya Khatiwada (Fermilab; Illinois Institute of Technology) Noah Kurinsky (Fermi National Accelerator Laboratory) Juliang Li (Argonne National Laboratory) Jesse Liu (University of Chicago) David Miller (University of Chicago) Sae Woo Nam (National Institute of Standards and Technology) Omid Noroozian (NASA Goddard Space Flight Center / UMD) Andrew Sonnenschein

Presentation materials