Piezoelectrically Tuned Multimode Cavity Search for Axion Dark Matter
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Univ. of Washington, Seattle, WA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- National Radio Astronomy Observatory, Charlottesville, VA (United States)
- Univ. of Sheffield (United Kingdom)
- Univ. of Chicago, IL (United States)
- Univ. of California, Berkeley, CA (United States)
- Univ. of Florida, Gainesville, FL (United States)
- Washington Univ., St. Louis, MO (United States)
- Univ. of Gottingen (Germany)
(ADMX) collaboration seeks to discover this particle by looking for the resonant conversion of dark-matter axions to microwave photons in a strong magnetic field. In this Letter, we report results from a pathfinder experiment, the ADMX “Sidecar,” which is designed to pave the way for future, higher mass, searches. This testbed experiment lives inside of and operates in tandem with the main ADMX experiment. The Sidecar experiment excludes masses in three widely spaced frequency ranges (4202–4249, 5086–5799, and 7173–7203 MHz). In addition, Sidecar demonstrates the successful use of a piezoelectric actuator for cavity tuning. Finally, this publication is the first to report data measured using both the TM010 and TM020 modes.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Florida, Gainesville, FL (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- ADMX Collaboration
- Grant/Contract Number:
- AC52-07NA27344; SC0010296; AC02-07CH11359; SC0009723; SC0010280; FG02-97ER41029; FG02-96ER40956
- OSTI ID:
- 1497949
- Alternate ID(s):
- OSTI ID: 1489069; OSTI ID: 1498559; OSTI ID: 1659656
- Report Number(s):
- LLNL-JRNL-763299; arXiv:1901.00920; FERMILAB-PUB-18-702-AD-AE; PRLTAO; 946607
- Journal Information:
- Physical Review Letters, Vol. 121, Issue 26; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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