Leptogenesis without CP Violation at Low Energies

Abstract

In this letter we give a class of examples where the decays of the heavy Majorana neutrinos may violate CP even if there is no CP violation at low energies, i.e., leptogenesis can take place without Majorana or Dirac type CP phases at low energies.

7 pages, no figures. One comment and references added. Version proof read

References in corpus (3)

• Leptogenesis and the Violation of Lepton Number and CP at Low Energies
• Observable Consequences of Partially Degenerate Leptogenesis
• Leptogenesis, mass hierarchies and low energy parameters

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