RADES axion search results with a High-Temperature Superconducting cavity in an 11.7 T magnet
S. Ahyoune, A. Álvarez Melcón, S. Arguedas Cuendis, S. Calatroni, C. Cogollos, A. Díaz-Morcillo, B. Döbrich, J. D. Gallego, J. M. García-Barceló, B. Gimeno, J. Golm, X. Granados, J. Gutierrez, L. Herwig, I. G. Irastorza, N. Lamas, A. Lozano-Guerrero, W. L. Millar, C. Malbrunot, J. Miralda-Escudé, P. Navarro, J. R. Navarro-Madrid, T. Puig, M. Siodlaczek, G. T. Telles, W. Wuensch
公開日: 2024/3/12
Abstract
We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The search used a custom-made radio-frequency cavity coated with high-temperature superconducting tape. A set of 27 h of data at a resonant frequency of around 8.84 GHz was analysed. In the range of axion mass 36.5676 $\mu$eV to 36.5699 $\mu$eV, corresponding to a width of 554 kHz, no signal excess hinting at an axion-like particle was found. Correspondingly, in this mass range, a limit on the axion to photon coupling-strength was set in the range between g$_{a\gamma}\gtrsim$ 6.2e-13 GeV$^{-1}$ and g$_{a\gamma}\gtrsim$ 1.59e-13 GeV$^{-1}$ with a 95% confidence level.