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New solution for neutrino masses and leptogenesis in adjoint SU(5)

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Abstract

We investigate baryogenesis via leptogenesis and generation of neutrino masses and mixings through the Type I plus Type III seesaw plus an one-loop mechanism in the context of Renormalizable Adjoint SU(5) theory. One light neutrino remains massless, because the contributions from three heavy Majorana fermions ρ 0, ρ 3 and ρ 8 to the neutrino mass matrix are not linearly independent. However none of these heavy fermions is decoupled from the generation of neutrino masses. This opens a new range in parameter space for successful leptogenesis, in particular, allows for inverted hierarchy of the neutrino masses.

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Authors and Affiliations

  1. Scuola Normale Superiore and INFN, Piazza dei Cavalieri 7, 56126, Pisa, Italy

    Kristjan Kannike & Dmitry V. Zhuridov

  2. NICPB, Ravala 10, 10143, Tallinn, Estonia

    Kristjan Kannike

Authors
  1. Kristjan Kannike
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  2. Dmitry V. Zhuridov
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Correspondence to Dmitry V. Zhuridov.

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ArXiv ePrint: 1105.4546

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Kannike, K., Zhuridov, D.V. New solution for neutrino masses and leptogenesis in adjoint SU(5). J. High Energ. Phys. 2011, 102 (2011). https://doi.org/10.1007/JHEP07(2011)102

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  • DOI: https://doi.org/10.1007/JHEP07(2011)102

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