Search for Axion Dark Matter from 1.1 to 1.3 GHz with ADMX

Journal Article · Mon Nov 03 00:00:00 EST 2025 · Physical Review Letters

DOI:https://doi.org/10.1103/d7mg-6sqq· OSTI ID:3011776

Carosi, G. ^[1]; Cisneros, C. ^[1]; Du, N. ^[1]; Durham, S. ^[1]; Robertson, N. ^[1]; Goodman, C. ^[2]; Guzzetti, M. ^[2]; Hanretty, C. ^[2]; Enzian, K. ^[2]; Rosenberg, L. J. ^[2]; Rybka, G. ^[2]; Sinnis, J. ^[2]; Zhang, D. ^[2]; Clarke, John ^[3]; Siddiqi, I. ^[3]; Chou, A. S. ^[4]; Hollister, M. ^[4]; Sonnenschein, A. ^[4]; Knirck, S. ^[5]; Caligiure, T. J. ^[6] ; Gleason, J. R. ^[6]; Hipp, A. T. ^[6]; Sikivie, P. ^[6]; Solano, M. E. ^[6]; Sullivan, N. S. ^[6]; Tanner, D. B. ^[6]; Khatiwada, R. ^[7]; Duffy, L. D. ^[8]; Boutan, C. ^[9]; Braine, T. ^[9]; Lentz, E. ^[9]; Oblath, N. S. ^[9]; Taubman, M. S. ^[9]; Daw, E. J. ^[10]; Mostyn, C. ^[10]; Perry, M. G. ^[10]; Bartram, C. ^[11]; Laurel, J. ^[11]; Yi, A. ^[11]; Dyson, T. A. ^[12]; Ruppert, S. ^[12]; Withers, M. O. ^[12]; Kuo, C. L. ^[13]; McAllister, B. T. ^[14]; Buckley, J. H. ^[15]; Gaikwad, C. ^[15]; Hoffman, J. ^[15]; Murch, K. ^[15]; Goryachev, M. ^[16]; Hartman, E. ^[16]; Quiskamp, A. ^[16]; Tobar, M. E. ^[16]

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1. Lawrence Livermore National Laboratory
2. University of Washington
3. University of California
4. Fermi National Accelerator Laboratory
5. Harvard University
6. University of Florida
7. Illinois Institute of Technology; Fermi National Accelerator Laboratory
8. Los Alamos National Laboratory
9. Pacific Northwest National Laboratory
10. University of Sheffield
11. SLAC National Accelerator Laboratory
12. Stanford University
13. SLAC National Accelerator Laboratory; Stanford University
14. Swinburne University of Technology
15. Washington University
16. University of Western Australia

Axion dark matter can satisfy the conditions needed to account for all of the dark matter and solve the strong 𝐶⁢𝑃 problem. The Axion Dark Matter eXperiment (ADMX) is a direct dark matter search using a haloscope to convert axions to photons in an external magnetic field. Key to this conversion is the use of a microwave resonator that enhances the sensitivity at the frequency of interest. The ADMX experiment boosts its sensitivity using a dilution refrigerator and near quantum-limited amplifier to reduce the noise level in the experimental apparatus. In the most recent run, ADMX searched for axions between 1.10 and 1.31 GHz to extended Kim-Shifman-Vainshtein-Zakharov sensitivity. This Letter reports on the results of that run, as well as unique aspects of this experimental setup.

• Research Organization: Univ. of Washington, Seattle, WA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: SC0011665; SC0009800; SC0009723; SC0010296; SC0010280; FG02-97ER41029; FG02-96ER40956; AC52-07NA27344; SC0022148; SC0017987; AC02-07CH11359; AC05-76RL01830
• OSTI ID: 3011776
• Alternate ID(s): OSTI ID: 2564444; OSTI ID: 3005847; OSTI ID: 3009949; OSTI ID: 3013303
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 135; ISSN 0031-9007; ISSN 1079-7114
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

axions
dark matter detectors
dark matter direct detection
microwave techniques
particle dark matter