Realistic Dirac Leptogenesis

Details Realistic Dirac Leptogenesis Realistic Dirac Leptogenesis

2002-06-19

arxiv.org/abs/hep-ph/0206177v2

Phys.Rev.Lett.89:271601,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure. Uses RevTex. Reference Added. Minor changes in wording

Scientific paper

10.1103/PhysRevLett.89.271601

We present a model of leptogenesis that preserves lepton number. The model maintains the important feature of more traditional leptogenesis scenarios: the decaying particles that provide the CP violation necessary for baryogenesis also provide the explanation for the smallness of the neutrino Yukawa couplings. This model clearly demonstrates that, contrary to conventional wisdom, neutrinos need not be Majorana in nature in order to help explain the baryon asymmetry of the universe.

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