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Title: Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment

This Letter reports the results from a haloscope search for dark matter axions with masses between 2.66 and 2.81 μ eV . The search excludes the range of axion-photon couplings predicted by plausible models of the invisible axion. This unprecedented sensitivity is achieved by operating a large-volume haloscope at subkelvin temperatures, thereby reducing thermal noise as well as the excess noise from the ultralow-noise superconducting quantum interference device amplifier used for the signal power readout. Finally, ongoing searches will provide nearly definitive tests of the invisible axion model over a wide range of axion masses.
Authors:
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Publication Date:
Report Number(s):
FERMILAB-PUB-18-101-AD-AE
Journal ID: ISSN 0031-9007; PRLTAO; 1667010
Grant/Contract Number:
AC02-07CH11359; SC0009723; SC0010296; FG02-96ER40956; AC52-07NA27344; DEAC52-07NA27344; C03-76SF00098
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 15; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); USDOE Laboratory Directed Research and Development (LDRD) Program
Contributing Orgs:
ADMX Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1432411
Alternate Identifier(s):
OSTI ID: 1432677