Search for Low-Mass Axion Dark Matter with ABRACADABRA-10 cm
Name
PhysRevLett.127.081801.pdf
Description
Published version
Size
627.95 KB
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Checksum (MD5)
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Author(s)
Salemi, Chiara P
Foster, Joshua W
Ouellet, Jonathan L
Gavin, Andrew
Pappas, Kaliroë MW
Cheng, Sabrina
Richardson, Kate A
Henning, Reyco
Kahn, Yonatan
Nguyen, Rachel
Date Issued
2021
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Salemi, Chiara P, Foster, Joshua W, Ouellet, Jonathan L, Gavin, Andrew, Pappas, Kaliroë MW et al. 2021. "Search for Low-Mass Axion Dark Matter with ABRACADABRA-10 cm." Physical Review Letters, 127 (8).
Version
Final published version
Abstract
Two of the most pressing questions in physics are the microscopic nature of the dark matter that comprises 84% of the mass in the Universe and the absence of a neutron electric dipole moment. These questions would be resolved by the existence of a hypothetical particle known as the quantum chromodynamics (QCD) axion. In this work, we probe the hypothesis that axions constitute dark matter, using the ABRACADABRA-10 cm experiment in a broadband configuration, with world-leading sensitivity. We find no significant evidence for axions, and we present 95% upper limits on the axion-photon coupling down to the world-leading level g_{aγγ}<3.2×10^{-11} GeV^{-1}, representing one of the most sensitive searches for axions in the 0.41-8.27 neV mass range. Our work paves a direct path for future experiments capable of confirming or excluding the hypothesis that dark matter is a QCD axion in the mass range motivated by string theory and grand unified theories.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1103/PHYSREVLETT.127.081801
