Neutrino masses, leptogenesis and decaying dark matter

  title={Neutrino masses, leptogenesis and decaying dark matter},
  author={Chuan-hung Chen and Chao-Qiang Geng and Dmitry V. Zhuridov},
We study a simple extension of the standard model to simultaneously explain neutrino masses, dark matter and the matter-antimatter asymmetry of the Universe. In our model, the baryon asymmetry is achieved by the leptogenesis mechanism, while the decaying dark matter with the lifetime of O(10 26 s) provides a natural solution to the electron and positron excesses in Fermi and PAMELA satellite experiments. In particular, we emphasize that our model is sensitive to the structure at the endpoint… CONTINUE READING

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