Completing constrained flavor violation: lepton masses, neutrinos and leptogenesis

Abstract

Constrained flavor violation is a recent proposal for predicting the down-quark Yukawa matrix in terms of those for up quarks and charged leptons. We study the viability of CFV with respect to its predictions for the lepton mass ratios, showing that this remains a challenge, and suggest some possible means for improving this shortcoming. We then extend CFV to include neutrinos, and show that it leads to interesting predictions for hierachical heavy neutrinos, and leptogenesis dominated by decays of the second heaviest one ("N2 leptogenesis"), as well as the possibility of low-scale leptoquark-mediated exotic decays.

13 pages, 7 figures; v.2: published version, reorganized and clarified leptogenesis section

References in corpus (19)

• Leptogenesis
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Primordial Nucleosynthesis: from precision cosmology to fundamental physics
• Ab initio calculation of the neutron-proton mass difference
• Updated Values of Running Quark and Lepton Masses
• Flavoured leptogenesis: a successful thermal leptogenesis with N_1 mass below 10^8 GeV
• Leptogenesis in the Universe
• The importance of N2 leptogenesis
• Searches for scalar leptoquarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Electroweak naturalness in three-flavour Type I see-saw and implications for leptogenesis
• Minimal Flavour Violation for Leptoquarks
• CP violation and Leptogenesis in models with Minimal Lepton Flavour Violation
• Nonzero ${\theta }_{13}$ and Leptogenesis in a Type-I See-saw Model with $A_4$ Symmetry
• Charged-Lepton Mixing and Lepton Flavor Violation
• Mass Bounds on Light and Heavy Neutrinos from Radiative MFV Leptogenesis
• Renormalization Group Evolution of Neutrino Parameters in Presence of Seesaw Threshold Effects and Majorana Phases
• A Further Study of the Frampton-Glashow-Yanagida Model for Neutrino Masses, Flavor Mixing and Baryon Number Asymmetry
• Leptogenesis in minimal predictive seesaw models
• Constrained Flavor Breaking

Cited by in corpus (4)

• Mixed Inert Scalar Triplet Dark Matter, Radiative Neutrino Masses and Leptogenesis
• Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter
• Peccei-Quinn symmetry for Dirac seesaw and leptogenesis
• Perspectives for tests of neutrino mass generation at the GeV scale: Experimental reach versus theoretical predictions