Leptogenesis in the Universe

  title={Leptogenesis in the Universe},
  author={Chee Sheng Fong and Enrico Nardi and Antonio Walter Riotto},
  journal={Advances in High Energy Physics},
Leptogenesis is a class of scenarios in which the cosmic baryon asymmetry originates from an initial lepton asymmetry generated in the decays of heavy sterile neutrinos in the early Universe. We explain why leptogenesis is an appealing mechanism for baryogenesis. We review its motivations and the basic ingredients and describe subclasses of effects, like those of lepton flavours, spectator processes, scatterings, finite temperature corrections, the role of the heavier sterile neutrinos, and… 

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