The Interplay Between the "Low" and "High" Energy CP-Violation in Leptogenesis

Abstract

We analyse within the "flavoured" leptogenesis scenario of baryon asymmetry generation, the interplay of the "low energy" CP-violation, originating from the PMNS neutrino mixing matrix $U$, and the "high energy" CP-violation which can be present in the matrix of neutrino Yukawa couplings, $\lambda$, and can manifest itself only in "high" energy scale processes. The type I see-saw model with three heavy right-handed Majorana neutrinos having hierarchical spectrum is considered. The "orthogonal" parametrisation of the matrix of neutrino Yukawa couplings, which involves a complex orthogonal matrix $R$, is employed. In this approach the matrix $R$ is the source of "high energy" CP-violation. Results for normal hierarchical (NH) and inverted hierarchical (IH) light neutrino mass spectrum are derived in the case of decoupling of the heaviest RH Majorana neutrino. It is shown that taking into account the contribution to $Y_B$ due to the CP-violating phases in the neutrino mixing matrix $U$ can change drastically the predictions for $Y_B$, obtained assuming only "high energy" CP-violation from the $R$-matrix is operative in leptogenesis. In the case of IH spectrum, in particular, there exist significant regions in the corresponding parameter space where the purely "high energy" contribution in $Y_B$ plays a subdominant role in the production of baryon asymmetry compatible with the observations.

Results unchanged; comments and references added; version to be puplished in Eur.Phys.J.C

References in corpus (51)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Oscillating neutrinos and mu --> e, gamma
• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Leptogenesis for Pedestrians
• Towards a complete theory of thermal leptogenesis in the SM and MSSM
• Three-flavour neutrino oscillation update
• Baryogenesis through leptogenesis
• The importance of flavor in leptogenesis
• Cosmological Sign of Neutrino CP Violation
• Cosmic Microwave Background, Matter-Antimatter Asymmetry and Neutrino Masses
• Flavour Matters in Leptogenesis
• Neutrino Mass Operator Renormalization Revisited
• Physics at a future Neutrino Factory and super-beam facility
• Neutrino Phenomenology -- the case of two right handed neutrinos
• General RG Equations for Physical Neutrino Parameters and their Phenomenological Implications
• Leptogenesis and Low Energy CP Violation in Neutrino Physics
• Connecting Low Energy Leptonic CP-violation to Leptogenesis
• Leptogenesis, CP violation and neutrino data: What can we learn?
• Primordial Lepton Family Asymmtries in Seesaw Model
• On the Connection of Leptogenesis with Low Energy CP Violation and LFV Charged Lepton Decays
• Leptogenesis and the Violation of Lepton Number and CP at Low Energies
• Predictions of the most minimal see-saw model
• Update of the solar neutrino oscillation analysis with the 766 Ty KamLAND spectrum
• The importance of N2 leptogenesis
• A new bridge between leptonic CP violation and leptogenesis
• The See-Saw Mechanism, Neutrino Yukawa Couplings, LFV Decays l_i to l_j + gamma and Leptogenesis
• Baryogenesis via lepton number violation in Anti-GUT model
• Observable Consequences of Partially Degenerate Leptogenesis
• Another Look at Minimal Lepton Flavour Violation, l_i -> l_j gamma, Leptogenesis, and the Ratio M_nu/ Lambda_LFV
• CP Violation, Neutrino Mixing and the Baryon Asymmetry
• Majorana Neutrinos, Neutrino Mass Spectrum, CP-Violation and Neutrinoless Double Beta-Decay: II. Mixing of Four Neutrinos
• Majorana Phases and Leptogenesis in See-Saw Models with A_4 Symmetry
• Global fits to neutrino oscillation data
• Leptogenesis without CP Violation at Low Energies
• Majorana CP-Violating Phases, RG Running of Neutrino Mixing Parameters and Charged Lepton Flavour Violating Decays
• Leptogenesis and low-energy phases
• Leptogenesis with Single Right-Handed Neutrino Dominance
• Viability of Dirac phase leptogenesis
• Theoretical Prospects of Neutrinoless Double Beta Decay
• A Case of Subdominant/Suppressed "High Energy" Contribution to the Baryon Asymmetry of the Universe in Flavoured Leptogenesis
• The Neutrinoless Double Beta Decay: The Case for Germanium Detectors
• Reconstructing the two right-handed neutrino model
• Neutrino Oscillation Parameters After High Statistics KamLAND Results
• Neutrino oscillations: present status and outlook
• Baryogenesis via Lepton Number Violation and Family Replicated Gauge Group
• Patterns of Lepton-Flavour Violation Motivated by Decoupling and Sneutrino Inflation
• Insensitivity of flavoured leptogenesis to low energy CP violation
• Towards Complete Neutrino Mixing Matrix and CP-Violation
• Exploring the neutrino mass matrix at M_R scale
• CP Violation in the SUSY Seesaw: Leptogenesis and Low Energy
• Effects of Lightest Neutrino Mass in Leptogenesis

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