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

29 Jun 2020 Tanya S. Roussy Daniel A. Palken William B. Cairncross Benjamin M. Brubaker Daniel N. Gresh Matt Grau Kevin C. Cossel Kia Boon Ng Yuval Shagam Yan Zhou Victor V. Flambaum Konrad W. Lehnert Jun Ye Eric A. Cornell

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... (read more)

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Categories


  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS
  • ATOMIC PHYSICS