Relating leptogenesis parameters to light neutrino masses

Guy Engelhard, Yosef Nir, Yuval Grossman

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We obtain model independent relations among neutrino masses and leptogenesis parameters. We find exact relations that involve the CP asymmetries , the washout parameters α and θαβ, and the neutrino masses mi and Mα, as well as powerful inequalities that involve just α and mi. We prove that the Yukawa interactions of at least two of the heavy singlet neutrinos are in the strong washout region (α 10-3eV).

Original languageEnglish
Article number029
JournalJournal of High Energy Physics
Issue number7
StatePublished - 1 Jul 2007
Externally publishedYes


  • Baryogenesis
  • Beyond standard model
  • Neutrino physics
  • Solar and atmospheric neutrinos


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