New Target for Cosmic Axion Searches.

@article{Baumann2016NewTF,
  title={New Target for Cosmic Axion Searches.},
  author={D. Baumann and D. Green and B. Wallisch},
  journal={Physical review letters},
  year={2016},
  volume={117 17},
  pages={
          171301
        }
}
  • D. Baumann, D. Green, B. Wallisch
  • Published 2016
  • Medicine, Physics
  • Physical review letters
  • Future cosmic microwave background experiments have the potential to probe the density of relativistic species at the subpercent level. This sensitivity allows light thermal relics to be detected up to arbitrarily high decoupling temperatures. Conversely, the absence of a detection would require extra light species never to have been in equilibrium with the Standard Model. In this Letter, we exploit this feature to demonstrate the sensitivity of future cosmological observations to the couplings… CONTINUE READING

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