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The μe conversion in nuclei, μ, μ → 3e decays and TeV scale see-saw scenarios of neutrino mass generation

  • D. N. Dinh
  • A. Ibarra
  • E. MolinaroEmail author
  • S. T. Petcov
Article

Abstract

We perform a detailed analysis of lepton flavour violation (LFV) within minimal see-saw type extensions of the Standard Model (SM), which give a viable mechanism of neutrino mass generation and provide new particle content at the electroweak scale. We focus, mainly, on predictions and constraints set on each scenario from μeγ, μ → 3e and μe conversion in the nuclei. In this class of models, the flavour structure of the Yukawa couplings between the additional scalar and fermion representations and the SM leptons is highly constrained by neutrino oscillation measurements. In particular, we show that in some regions of the parameters space of type I and type II see-saw models, the Dirac and Majorana phases of the neutrino mixing matrix, the ordering and hierarchy of the active neutrino mass spectrum as well as the value of the reactor mixing angle θ 13 may considerably affect the size of the LFV observables. The interplay of the latter clearly allows to discriminate among the different low energy see-saw possibilities.

Keywords

Rare Decays Neutrino Physics Beyond Standard Model 

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Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  • D. N. Dinh
    • 1
    • 2
  • A. Ibarra
    • 3
  • E. Molinaro
    • 4
    Email author
  • S. T. Petcov
    • 1
    • 5
    • 6
  1. 1.SISSA and INFN-Sezione di TriesteTriesteItaly
  2. 2.Institute of PhysicsHanoiVietnam
  3. 3.Physik-Department T30dTechnische Universität MünchenGarchingGermany
  4. 4.Centro de F ısica Teórica de Partículas, Instituto Superior TécnicoTechnical University of LisbonLisboaPortugal
  5. 5.Kavli IPMU, University of TokyoKashiwaJapan
  6. 6.Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of SciencesSofiaBulgaria

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