paper

RADES axion search results with a High-Temperature Superconducting cavity in an 11.7 T magnet

arXiv:2403.07790 · doi:10.1007/JHEP04(2025)113

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 eV to 36.5699 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 6.2e-13 GeV and g 1.59e-13 GeV with a 95% confidence level.

19 pages, 8 figures v2: Accepted version for publication in JHEP

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