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Experimental constraint on axion-like particle coupling over seven orders of magnitude in mass

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arxiv 2006.15787 v3 pith:ETBFQBUY submitted 2020-06-29 hep-ph astro-ph.COphysics.atom-ph

Experimental constraint on axion-like particle coupling over seven orders of magnitude in mass

Tanya S. Roussy , Daniel A. Palken , William B. Cairncross , Benjamin M. Brubaker , Daniel N. Gresh , Matt Grau , Kevin C. Cossel , Kia Boon Ng
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Yuval Shagam Yan Zhou Victor V. Flambaum Konrad W. Lehnert Jun Ye Eric A. Cornell
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classification hep-ph astro-ph.COphysics.atom-ph
keywords constraintcouplingrangealp-gluonaxion-likeconstrainfieldfirst
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We use our recent electric dipole moment (EDM) measurement data to constrain the possibility that the HfF$^+$ EDM oscillates in time due to interactions with candidate dark matter axion-like particles (ALPs). We employ a Bayesian analysis method which accounts for both the look-elsewhere effect and the uncertainties associated with stochastic density fluctuations in the ALP field. We find no evidence of an oscillating EDM over a range spanning from 27 nHz to 400 mHz, and we use this result to constrain the ALP-gluon coupling over the mass range $10^{-22}-10^{-15}$ eV. This is the first laboratory constraint on the ALP-gluon coupling in the $10^{-17}-10^{-15}$ eV range, and the first laboratory constraint to properly account for the stochastic nature of the ALP field.

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