Dark matter annihilation in the universe

  title={Dark matter annihilation in the universe},
  author={P. Salati},
  journal={arXiv: High Energy Astrophysical Phenomena},
  • P. Salati
  • Published 18 March 2014
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
The astronomical dark matter is an essential component of the Universe and yet its nature is still unresolved. It could be made of neutral and massive elementary particles which are their own antimatter partners. These dark matter species undergo mutual annihilations whose effects are briefly reviewed in this article. Dark matter annihilation plays a key role at early times as it sets the relic abundance of the particles once they have decoupled from the primordial plasma. A weak annihilation… 

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