Abstract
The invisible axion is a hypothetical particle that arises from the Peccei-Quinn mechanism proposed to resolve the problem in quantum chromodynamics, and is considered one of the most favored candidates for cold dark matter. Dish antennas can provide a useful scheme for sensitive searches for dark matter axions. The conversion power through axion-photon couplings is proportional to the surface area of the metal plate, rather than the volume of the available magnetic field. To maximize the effect, we propose an advanced concept of haloscope that involves an array of horn antennas to increase the axion-induced photons and a reflector to focus them onto a photo sensor. Compared with other proposed schemes, this configuration can significantly improve the experimental sensitivity, especially in the terahertz region.
- Received 21 June 2023
- Accepted 10 August 2023
DOI:https://doi.org/10.1103/PhysRevD.108.L051101
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society