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<p>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 <i>μ</i>eV to 36.5699 <i>μ</i>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<sub><i>aγ</i></sub> ≳ 6.3 × 10<sup>−13</sup> GeV<sup>−1</sup> and g<sub><i>aγ</i></sub> ≳ 1.59 × 10<sup>−13</sup> GeV<sup>−1</sup> with a 95% confidence level.</p>

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RADES axion search results with a high-temperature superconducting cavity in an 11.7 T magnet

  • 期刊论文

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  • 发表日期：

    2025年4月15日

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  • 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,
  • C. Malbrunot,
  • W. L. Millar,
  • J. Miralda-Escudé,
  • P. Navarro,
  • J. R. Navarro-Madrid,
  • T. Puig,
  • M. Siodlaczek,
  • G. T. Telles,
  • W. Wuensch

摘要

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 μeV to 36.5699 μeV, 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 gaγ ≳ 6.3 × 10−13 GeV−1 and gaγ ≳ 1.59 × 10−13 GeV−1 with a 95% confidence level.