Experimental constraint on axion-like particle coupling over seven orders of magnitude in mass. (arXiv:2006.15787v1 [hep-ph])
<a href="http://arxiv.org/find/hep-ph/1/au:+Roussy_T/0/1/0/all/0/1">Tanya S. Roussy</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Palken_D/0/1/0/all/0/1">Daniel A. Palken</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Cairncross_W/0/1/0/all/0/1">William B. Cairncross</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Brubaker_B/0/1/0/all/0/1">Benjamin M. Brubaker</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Gresh_D/0/1/0/all/0/1">Daniel N. Gresh</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Grau_M/0/1/0/all/0/1">Matt Grau</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Cossel_K/0/1/0/all/0/1">Kevin C. Cossel</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Ng_K/0/1/0/all/0/1">Kia Boon Ng</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Shagam_Y/0/1/0/all/0/1">Yuval Shagam</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Zhou_Y/0/1/0/all/0/1">Yan Zhou</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Flambaum_V/0/1/0/all/0/1">Victor V. Flambaum</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Lehnert_K/0/1/0/all/0/1">Konrad W. Lehnert</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Ye_J/0/1/0/all/0/1">Jun Ye</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Cornell_E/0/1/0/all/0/1">Eric A. Cornell</a>
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.
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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