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The Echo Method for Axion Dark Matter Detection

Arza, Ariel; Todarello, Elisa


The axion is a dark matter candidate arising from the spontaneous breaking of the Peccei–Quinn symmetry, introduced to solve the strong CP problem. It has been shown that radio/microwave radiation sent out to space is backscattered in the presence of axion dark matter due to stimulated axion decay. This backscattering is a feeble and narrow echo signal centered at an angular frequency very close to one-half of the axion mass. In this article, we summarize all the relevant results found so far, including analytical formulas for the echo signal, as well as sensitivity prospects for possible near-future experiments.

Verlagsausgabe §
DOI: 10.5445/IR/1000142282
Veröffentlicht am 25.01.2022
DOI: 10.3390/sym13112150
Zitationen: 2
Web of Science
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2073-8994
KITopen-ID: 1000142282
HGF-Programm 51.11.01 (POF IV, LK 01) Teilchenphysik
Erschienen in Symmetry
Verlag MDPI
Band 13
Heft 11
Seiten Art.-Nr.: 2150
Vorab online veröffentlicht am 10.11.2021
Schlagwörter axions; dark matter; axion detection
Nachgewiesen in Dimensions
Web of Science
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