2008

Leptogenesis

Davidson, Sacha, Nardi, Enrico, Nir, Yosef

Understand

Leptogenesis is a class of scenarios where the baryon asymmetry of the Universe is produced from a lepton asymmetry generated in the decays of a heavy sterile neutrino.

  • We explain the motivation for leptogenesis.
  • We review the basic mechanism, and describe subclasses of models.
  • We then focus on recent developments in the understanding of leptogenesis: finite temperature effects, spectator processes, and in particular the significance of flavor physics.

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