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Oscillating neutrinos and mu --> e, gamma
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If neutrino masses and mixings are suitable to explain the atmospheric and solar neutrino fluxes, this amounts to contributions to FCNC processes, in particular mu --> e, gamma. If the theory is supersymmetric and the origin of the masses is a see-saw mechanism, we show that the prediction for BR(mu --> e, gamma) is in general larger than the experimental upper bound, especially if the largest Yukawa coupling is O(1) and the solar data are explained by a large angle MSW effect, which recent analyses suggest as the preferred scenario. Our analysis is bottom-up and completely general, i.e. it is based just on observable low-energy data. The work generalizes previous results of the literature, identifying the dominant contributions. Application of the results to scenarios with approximate top-neutrino unification, like SO(10) models, rules out most of them unless the leptonic Yukawa matrices satisfy very precise requirements. Other possible ways-out, like gauge mediated SUSY breaking, are also discussed.
Forward citations
Cited by 57 Pith papers
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Scotogenic mechanism from an extended $\boldsymbol{SU(2)_1 \times SU(2)_2 \times U(1)_Y}$ electroweak symmetry
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Collider signatures of fermionic scotogenic dark matter
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Lepton flavor violation in the Majorana and Dirac scotogenic models
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Minimal Dirac seesaw dark matter
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On radiative corrections to lepton number violating processes
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Global analysis of a minimally extended scotogenic model
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Leptonic CP asymmetry and heavy neutrino searches in seesaw scenario
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Multi-peaked high-frequency gravitational waves from PBH-assisted leptogenesis
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Majoron Dark Matter, High-Scale Seesaw, and Leptogenesis
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Emergent Neutrino Texture Geometry from Dark Matter and Lepton Flavor Violation in the Scotogenic Model
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ULYSSES the Third: An Odyssey Towards a Unified Python Toolkit for Leptogenesis
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- Phenomenological Aspects of Models with Low Scale Seesaw
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