Matter and antimatter in the universe

  title={Matter and antimatter in the universe},
  author={Laurent Canetti and M. Drewes and M. Shaposhnikov},
  journal={New Journal of Physics},
We review observational evidence for a matter-antimatter asymme- try in the early universe, which leads to the remnant matter density we observe today. We also discuss bounds on the presence of antimatter in the present-day universe, including the possibility of a large lepton asymmetry in the cosmic neutrino background. We briefly review the theoretical framework within which baryogenesis, the dynamical generation of a matter-antimatter asymmetry, can occur. As an example, we discuss a… Expand
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