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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 g₀ 6. 2e-13 GeV^-1 and g₀ 1. 54e-13 GeV^-1 with a 95% confidence level.
Ahyoune et al. (Tue,) studied this question.
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