• Corpus ID: 252544800

NASDUCK SERF: New constraints on axion-like dark matter from a SERF comagnetometer

  title={NASDUCK SERF: New constraints on axion-like dark matter from a SERF comagnetometer},
  author={Itay M. Bloch and Roy Shaham and Yonit Hochberg and Eric Kuflik and Tomer Volansky and Or Katz},
Ultralight axion-like particles are well-motivated relics that might compose the cosmological dark matter and source anomalous time-dependent magnetic fields. We report on new terrestrial bounds on the coupling of axion-like particles to neutrons and protons. The detector uses nuclei of noble-gas and alkali-metal atoms and operates in the Spin-Exchange Relaxation-Free (SERF) regime, achieving high sensitivity to axion-like dark matter fields. Conducting a month-long search, we cover the mass… 

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