Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)

  title={Proposal for a Cosmic Axion Spin Precession Experiment (CASPEr)},
  author={Dmitry Budker and Peter W. Graham and Micah P. Ledbetter and Surjeet Rajendran and Alexander O. Sushkov},
  journal={Physical Review X},
We propose an experiment to search for QCD axion and axionlike-particle dark matter. Nuclei that are interacting with the background axion dark matter acquire time-varying C P -odd nuclear moments such as an electric dipole moment. In analogy with nuclear magnetic resonance, these moments cause precession of nuclear spins in a material sample in the presence of an electric field. Precision magnetometry can be used to search for such precession. An initial phase of this experiment could cover… 

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