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PreprintarXiv licencearXiv

Search for Axion Dark Matter around \texorpdfstring{15.6 μeV}{15.6 microeV} with a Broadly Tunable High-Temperature Superconducting Cavity

  • Jiwon Lee
  • Jinsu Kim
  • Ohjoon Kwon
  • Saebyeok Ahn
  • Seonjeong Oh
  • Sergey Uchaikin
  • Boris Ivanov
  • Arjan Ferdinand van Loo
  • Yasunobu Nakamura
  • Dojun Youm
  • SungWoo Youn
  • HyoungSoon Choi
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Abstract

We report an axion dark matter search in the mass range of 15.30−−15.85 μeV using a broadly tunable high-temperature superconducting (HTS) haloscope. By soldering substrate-stripped rare-earth barium copper oxide (REBCO) films onto a copper shell, we achieved a quality factor 3--4 times higher than in copper cavities across its tuning band in an 8\text{-T} magnetic field. We set robust Frequentist 90\%~confidence-level exclusion limits on the axion--photon coupling down to 1.3 times the KSVZ coupling, while a complementary Bayesian analysis achieves KSVZ-level sensitivity.

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Cite

BibTeXRIS
BibTeX
@misc{lee2026search,
  title = {{Search for Axion Dark Matter around \texorpdfstring$15.6\,μ\texteV$15.6 microeV with a Broadly Tunable High-Temperature Superconducting Cavity}},
  author = {Jiwon Lee and Jinsu Kim and Ohjoon Kwon and Saebyeok Ahn and Seonjeong Oh and Sergey Uchaikin and Boris Ivanov and Arjan Ferdinand van Loo and Yasunobu Nakamura and Dojun Youm and SungWoo Youn and HyoungSoon Choi},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.08144},
  eprint = {2609.08144},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.08144},
}
RIS
TY  - UNPB
TI  - Search for Axion Dark Matter around \texorpdfstring{15.6 μeV}{15.6 microeV} with a Broadly Tunable High-Temperature Superconducting Cavity
AU  - Jiwon Lee
AU  - Jinsu Kim
AU  - Ohjoon Kwon
AU  - Saebyeok Ahn
AU  - Seonjeong Oh
AU  - Sergey Uchaikin
AU  - Boris Ivanov
AU  - Arjan Ferdinand van Loo
AU  - Yasunobu Nakamura
AU  - Dojun Youm
AU  - SungWoo Youn
AU  - HyoungSoon Choi
PY  - 2026
DA  - 2026/09/08
PB  - arXiv
DO  - 10.48550/arxiv.2609.08144
UR  - https://arxiv.org/abs/2609.08144
AB  - We report an axion dark matter search in the mass range of 15.30−−15.85 μeV using a broadly tunable high-temperature superconducting (HTS) haloscope. By soldering substrate-stripped rare-earth barium copper oxide (REBCO) films onto a copper shell, we achieved a quality factor 3--4 times higher than in copper cavities across its tuning band in an 8\text{-T} magnetic field. We set robust Frequentist 90\%~confidence-level exclusion limits on the axion--photon coupling down to 1.3 times the KSVZ coupling, while a complementary Bayesian analysis achieves KSVZ-level sensitivity.
ER  -