Physical Review Letters
First page number:
Last page number:
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 axionlike 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.
Cosmology, Relativity, and Gravity | Physical Processes
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Experimental Constraint on Axionlike Particles over Seven Orders of Magnitude in Mass.
Physical Review Letters, 126(17),