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arXiv · 2310.16013

Experimental measurement of the quality factor of a Fabry-P\'erot open-cavity axion haloscope

Juan F. Hernández-Cabrera·Javier De Miguel·E. Hernández-Suárez·Enrique Joven-Álvarez·H. Lorenzo-Hernández·Chiko Otani·Miguel A. Rapado-Tamarit·J. Alberto Rubiño-Martín
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Abstract

The axion is a hypothetical boson arising from the most natural solution to the problem of charge and parity symmetry in the strong nuclear force. Moreover, this pseudoscalar emerges as a dark matter candidate in a parameter space extending several decades in mass. The Dark-photons \& Axion-Like particles Interferometer (DALI) is a proposal to search for axion dark matter in a range that remains under-examined. Currently in a design and prototyping phase, this haloscope is a multilayer Fabry-P\'erot interferometer. A proof-of-principle experiment is performed to observe the resonance in a prototype. The test unveils a quality factor per open cavity of a few hundred over a bandwidth of the order of dozens of megahertz. The result elucidates a physics potential to find the, so far elusive, axion, in a sector which can simultaneously solve the symmetry problem in the strong interaction and the enigma of dark matter.

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Juan F. Hernández-Cabrera, Javier De Miguel, E. Hernández-Suárez, Enrique Joven-Álvarez, H. Lorenzo-Hernández, Chiko Otani, Miguel A. Rapado-Tamarit, J. Alberto Rubiño-Martín. 2023-10-24. Experimental measurement of the quality factor of a Fabry-P\'erot open-cavity axion haloscope. https://doi.org/10.1088/1748-0221/19/01/p01022

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