CP Violation and Neutrino Oscillations

Abstract

We review the basic mechanisms of neutrino mass generation and the corresponding structure of the lepton mixing matrix. We summarize the status of three-neutrino oscillation parameters as determined from current observations, using state-of-the-art solar and atmospheric neutrino fluxes, as well as latest experimental data as of September 2007. We also comment on recent attempts to account for these results and to understand flavour from first principles. We discuss extensively the prospects for probing the strength of CP violation in two near term accelerator neutrino oscillation experiments, T2K and NOvA, as well as possible extensions such as T2KK and a second large off-axis detector near the NOvA detector. We also briefly discuss the possibility of probing the effect of Majorana phases in future neutrinoless double beta decay searches and discuss other implications of leptonic CP violation such as leptogenesis. Finally we comment on the issue of robustness of the current oscillation interpretation and possible ways of probing for non-standard neutrino interactions in precision oscillation studies.

78 pages, 46 figures, minor misprint corrections, a few new references and an acknowledgement to a funding agency. Review to be published in Prog. Part. Nucl. Phys

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• Tri-Bimaximal Neutrino Mixing and the Family Symmetry Z_7 x Z_3
• Decaying warm dark matter and neutrino masses
• Predictive flavour symmetries of the neutrino mass matrix
• Flavor Symmetry for Quarks and Leptons
• Resolving Eight-Fold Neutrino Parameter Degeneracy by Two Identical Detectors with Different Baselines
• Probing non-standard neutrino interactions with supernova neutrinos
• Neutrino mixing from the double tetrahedral group T^{\prime}
• Extended Black Box Theorem for Lepton Number and Flavor Violating processes
• Exact relativistic beta decay endpoint spectrum
• Fermion masses, Leptogenesis and Supersymmetric SO(10) Unification

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• Tri-bimaximal neutrino mixing and neutrinoless double beta decay
• Neutrino Physics and Spontaneous CP Violation in the $\mu \nu$SSM
• X-ray photons from late-decaying majoron dark matter
• An Analysis of Cosmic Neutrinos: Flavor Composition at Source and Neutrino Mixing Parameters
• Probing minimal supergravity in the type-I seesaw mechanism with lepton flavour violation at the CERN LHC
• NMSSM and Seesaw Physics at LHC
• Can OPERA help in constraining neutrino non-standard interactions?
• Higgs Boson Mass Bounds in the Standard Model with Type III and Type I Seesaw
• Type II Seesaw and the PAMELA/ATIC Signals
• The New Extended Left-Right Symmetric Grand Unified Model with SO(3) Family Symmetry
• CP Violation in the Neutrino Sector
• Neutrinos as cosmic messengers