On Power and Complementarity of the Experimental Constraints on Seesaw Models

Abstract

We demonstrate the impact that present lepton flavour and CP violation data - neutrino oscillations, baryon asymmetry of the universe, flavour violations in charged lepton decays and lepton electric dipole moments - have on supersymmetric seesaw theories by analysing the class of models based on a U(1) flavour symmetry. The fermion U(1) charges are determined to a large extent by the data, the flavour patterns being naturally defined through their choice. The selected models generically predict mu -> e gamma within the reach of the projected experiments, which could be sensitive enough to exclude the whole class of them. By now, the present sensitivity to mu -> e gamma already provides stringent bounds on the contribution of the seesaw couplings to the lepton electric dipole moments.

28 pages, 5 figures; v2: a comment a reference added, minor improvements in the text

References in corpus (3)

• Some Aspects of Thermal Leptogenesis
• Massive Neutrinos and Flavour Violation
• Low-scale standard supersymmetric leptogenesis

Cited by in corpus (13)

• Flavour physics of leptons and dipole moments
• The See-Saw Mechanism, Neutrino Yukawa Couplings, LFV Decays l_i to l_j + gamma and Leptogenesis
• Majorana CP-Violating Phases, RG Running of Neutrino Mixing Parameters and Charged Lepton Flavour Violating Decays
• Charged Lepton Decays L_i to L_j + gamma, Leptogenesis CP-Violating Parameters and Majorana Phases
• Quark-Lepton Unification and Eight-Fold Ambiguity in the Left-Right Symmetric Seesaw Mechanism
• Introduction to Charged Lepton Flavour Violation
• Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation
• Bounds on the Neutrino Mixing Angles and CP Phase for an SO(10) Model with Lopsided Mass Matrices
• Observable Electron EDM and Leptogenesis
• Can Measurements of Electric Dipole Moments Determine the Seesaw Parameters?
• The B-L Phase Transition: Implications for Cosmology and Neutrinos
• Inverted neutrino mass hierarchies from U(1) symmetries
• $A_5$ symmetry and deviation from Golden Ratio mixing with charged lepton flavor violation