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DarkGEO: a large-scale laser-interferometric axion detector

Heinze, Joscha, Gill, Alex, Dmitriev, Artemiy, Smetana, Jiří, Yan, Tianliang, Boyer, Vincent, Martynov, Denis, Grote, Hartmut ORCID:, Lough, James, Ejlli, Aldo and Müller, Guido 2024. DarkGEO: a large-scale laser-interferometric axion detector. New Journal of Physics 26 (5) , 055002. 10.1088/1367-2630/ad48ac

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Axions and axion-like particles (ALPs) are leading candidates for dark matter. They are well motivated in many extensions of the standard model and supported by astronomical observations. We propose an iterative transformation of the existing facilities of the gravitational-wave detector and technology testbed GEO600, located near Ruthe in Germany, into a kilometre-scale upgrade of the laser-interferometric axion detector LIDA. The final DarkGEO detector could search for coincident signatures of axions and ALPs and significantly surpass the current constraints of both direct searches and astrophysical observations in the measurement band from 10−16 to 10−8eV. We discuss design parameters and sensitivities for the configurations of the different iteration steps as well as technical challenges known from the first LIDA results. The proposed DarkGEO detector will be well suited to probe the mass-coupling parameter space associated with predictions from theoretical models, like grand-unified theories, as well as from astrophysical evidence, like the cosmic infrared background.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Additional Information: License information from Publisher: LICENSE 1: URL:, Type: cc-by
Publisher: IOP Publishing
ISSN: 1367-2630
Date of First Compliant Deposit: 22 May 2024
Date of Acceptance: 8 May 2024
Last Modified: 22 May 2024 08:45

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