New Observables for Direct Detection of Axion Dark Matter

  title={New Observables for Direct Detection of Axion Dark Matter},
  author={Peter W. Graham and Surjeet Rajendran},
  journal={Physical Review D},
We propose new signals for the direct detection of ultralight dark matter such as the axion. Axion or axionlike particle dark matter may be thought of as a background, classical field. We consider couplings for this field which give rise to observable effects including a nuclear electric dipole moment, and axial nucleon and electron moments. These moments oscillate rapidly with frequencies accessible in the laboratory, ∼ kilohertz to gigahertz, given by the dark matter mass. Thus, in contrast… 

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