The Canfranc Axion Detection Experiment (CADEx): search for axions at 90 GHz with Kinetic Inductance Detectors
B. Aja, S. Arguedas Cuendis, Iván Arregui, E. Artal, R. B. Barreiro, F. J. Casas, Marina C. de Ory, Alejandro Díaz‐Morcillo, Luisa de la Fuente, J. D. Gallego, J. M. García-Barceló, B. Gimeno, A. Gómez, Daniel Granados, Bradley J. Kavanagh, M. A. G. Laso, T. Lopetegi, Antonio José Lozano Guerrero, María Teresa Magaz, J. Martín‐Pintado, E. Martínez-González, Jordi Miralda‐Escudé, Juan Monzó‐Cabrera, Francisco Najarro de la Parra, Jose R. Navarro-Madrid, Ana B. Nuñez Chico, Juan Pablo Pascual Gutiérrez, J. Pelegrìn, Carlos Peña Garay, David Rodríguez, Juan M. Socuéllamos, Fernando Teberio, Jorge Teniente, P. Vielva, I. Vila, R. Vilar Cortabitarte, Enrique Villa
Abstract
Abstract We propose a novel experiment, the Canfranc Axion Detection Experiment (CADEx), to probe dark matter axions with masses in the range 330–460 μ eV, within the W-band (80–110 GHz), an unexplored parameter space in the well-motivated dark matter window of Quantum ChromoDynamics (QCD) axions. The experimental design consists of a microwave resonant cavity haloscope in a high static magnetic field coupled to a highly sensitive detecting system based on Kinetic Inductance Detectors via optimized quasi-optics (horns and mirrors). The experiment is in preparation and will be installed in the dilution refrigerator of the Canfranc Underground Laboratory. Sensitivity forecasts for axion detection with CADEx, together with the potential of the experiment to search for dark photons, are presented.