• Corpus ID: 117638146

Lepton Number Violation with and without Majorana Neutrinos

  title={Lepton Number Violation with and without Majorana Neutrinos},
  author={Julian Heeck},
  journal={arXiv: High Energy Physics - Phenomenology},
  • J. Heeck
  • Published 26 March 2015
  • Physics
  • arXiv: High Energy Physics - Phenomenology
We discuss the various incarnations of a gauged B-L symmetry: 1) unbroken, it features Dirac neutrinos, neutrinogenesis to create the baryon asymmetry of our Universe, and a potentially light Z' boson; 2) broken by two units, we obtain the standard case of Majorana neutrinos, seesaw and thermal leptogenesis; 3) broken by four units, we find Dirac neutrinos with lepton-number-violating interactions, which can give rise to a new Dirac leptogenesis mechanism. We review and discuss the signatures… 

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