Journal Article

Scalable haloscopes for axion dark matter detection in the 30 μeV range with RADES

Melcón, A. Álvarez, Garay, C. Peña, Cogollos, C., Golm, J., Díaz-Morcillo, A., Malbrunot, C., Millar, A., Redondo, J., Wuensch, W., Irastorza, I. G., Lozano-Guerrero, A. J., Gallego, J. D., Gimeno, B., Barceló, J. M. García, Cuendis, S. Arguedas, Döbrich, B., Navarro, P.

2020

Overview

A bstract RADES (Relic Axion Detector Exploratory Setup) is a project with the goal of directly searching for axion dark matter above the 30 μ eV scale employing custom-made microwave filters in magnetic dipole fields. Currently RADES is taking data at the LHC dipole of the CAST experiment. In the long term, the RADES cavities are envisioned to take data in the BabyIAXO magnet. In this article we report on the modelling, building and characterisation of an optimised microwave-filter design with alternating irises that exploits maximal coupling to axions while being scalable in length without suffering from mode-mixing. We develop the mathematical formalism and theoretical study which justifies the performance of the chosen design. We also point towards the applicability of this formalism to optimise the MADMAX dielectric haloscopes.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
• Subject: Classical and Quantum Gravitation / Dark matter / Dark Matter and Double Beta Decay (experiments) / Design optimization / Elementary Particles / Filter design (mathematics) / Formalism / High energy physics / Magnetic dipoles / Microwave filters / Physics / Physics and Astronomy / Quantum Field Theories / Quantum Field Theory / Quantum Physics / Regular Article - Experimental Physics / Relativity Theory / String Theory