Journal
PHYSICAL REVIEW X
Volume 7, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.7.041034
Keywords
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Funding
- U.K. Science and Technology Facilities Council (STFC) [ST/N000307/1, ST/M503836/1]
- School of Mathematical and Physical Sciences at the University of Sussex
- STFC
- Swiss National Science foundation [200020_172639, 20020_162574, 200020_163413, 200020_157079, PP00P2_163663]
- National Science Centre, Poland [UMO2015/18/M/ST2/00056]
- Research Foundation-Flanders (FWO)
- French Agence Nationale de la Recherche [ANR-09-BLAN-0046]
- STFC [ST/L000326/1]
- European Research Council under the European Union's Horizon programme (ERC) [648680 DARKHORIZONS]
- Gutenberg Research College Fellowship
- Australian Research Council
- Royal Astronomical Society postdoctoral fellowship hosted at King's College London
- State Secretariat for Education, Research and Innovation (SERI)-Federal Commission for Scholarships [2015.0594]
- Humboldt Research Fellowship
- Research Foundation Flanders (FWO)
- Science and Technology Facilities Council [ST/P000258/1, ST/M003426/1, ST/M503836/1, ST/L006472/1, ST/K001329/1 nEDM, ST/N000307/1, 1656704, ST/L000326/1, 1653817] Funding Source: researchfish
- STFC [ST/P000258/1, ST/M003426/1, ST/L006472/1, ST/M503836/1, ST/L000326/1, ST/N000307/1] Funding Source: UKRI
- Swiss National Science Foundation (SNF) [PP00P2_163663, 200020_172639, 200020_163413, 200020_157079] Funding Source: Swiss National Science Foundation (SNF)
- Agence Nationale de la Recherche (ANR) [ANR-09-BLAN-0046] Funding Source: Agence Nationale de la Recherche (ANR)
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We report on a search for ultralow-mass axionlike dark matter by analyzing the ratio of the spinprecession frequencies of stored ultracold neutrons and Hg-199 atoms for an axion-induced oscillating electric dipole moment of the neutron and an axion-wind spin-precession effect. No signal consistent with dark matter is observed for the axion mass range 10(-24) <= ma <= 10(-17) eV. Our null result sets the first laboratory constraints on the coupling of axion dark matter to gluons, which improve on astrophysical limits by up to 3 orders of magnitude, and also improves on previous laboratory constraints on the axion coupling to nucleons by up to a factor of 40.
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