First results from BRASS-p broadband searches for hidden photon dark matter

Journal
Date Issued
2023
Author(s)
Bajjali, Fayez
•
Dornbusch, Sven
•
Ekmedžić, Marko
•
Horns, Dieter
•
Kasemann, Christoph
•
Lobanov, Andrei
•
Mkrtchyan, Artak
•
Nguyen, Le Hoang
•
Tluczykont, Martin
•
•
Ulrichs, Johannes
•
Wieching, Gundolf
•
Zensus, Anton
DOI
Abstract
We discuss first results from hidden photon dark matter searches made with a prototype of the Broadband Radiometric Axion/ALPs Search Setup (BRASS-p) in the range of particle mass of 49.63 μeV to 74.44 μeV (frequency range of 12 GHz to 18 GHz). The conceptual design of BRASS and a detailed description of its present prototype, BRASS-p, are given, with a view of the potential application of such setups to hidden photon, axion, and axion-like particle (ALP) dark matter searches using heterodyne detectors in the range of particle mass from 40 μeV to 4000 μeV (10 GHz to 1 THz). Pioneering measurements made with BRASS-p achieve the record sensitivity of (0.3-1.0) × 10-13 to the kinetic mixing between the normal and hidden photons, assuming the dark matter is made entirely of unpolarized hidden photons. Based on these results, a discussion of further prospects for dark matter searches using the BRASS-p apparatus is presented.
Volume
2023
Issue
8
Start page
077
Uri
Url
Issn Identifier
1475-7516
Rights
open.access
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