CP Violation in the SUSY Seesaw: Leptogenesis and Low Energy

Abstract

We suppose that the baryon asymmetry is produced by thermal leptogenesis (with flavour effects), at temperatures $\sim 10^9-10^{10}$ GeV, in the supersymmetric seesaw with universal and real soft terms. The parameter space is restricted by assuming that $l_{\alpha }\to l_{\beta }\gamma$ processes will be seen in upcoming experiments. We study the sensitivity of the baryon asymmetry to the phases of the lepton mixing matrix, and find that leptogenesis can work for any value of the phases. We also estimate the contribution to the electric dipole moment of the electron, arising from the seesaw, and find that it is (just) beyond the sensitivity of next generation experiments ($\lsim 10^{-29} e$ cm). The fourteen dimensional parameter space is efficiently explored with a Monte Carlo Markov Chain, which concentrates on the regions of interest.

arXiv comment30 pages, 7 figures

References in corpus (59)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Oscillating neutrinos and mu --> e, gamma
• A lower bound on the right-handed neutrino mass from leptogenesis
• Towards a complete theory of thermal leptogenesis in the SM and MSSM
• Final Results from phase II of the Mainz Neutrino Mass Search in Tritium $\beta$ Decay
• Lepton-Flavor Violation via Right-Handed Neutrino Yukawa Couplings in Supersymmetric Standard Model
• Cosmological parameters from combining the Lyman-alpha forest with CMB, galaxy clustering and SN constraints
• The Muon Anomalous Magnetic Dipole Moment in the Minimal Supersymmetric Standard Model
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Parameter Estimation Methodology
• Baryogenesis through leptogenesis
• The importance of flavor in leptogenesis
• Big-Bang Nucleosynthesis and Gravitino
• Flavour Issues in Leptogenesis
• Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
• Flavour physics of leptons and dipole moments
• Solar and Atmospheric Neutrino Oscillations and Lepton Flavor Violation in Supersymmetric Models with Right-handed Neutrinos
• Gravitino Dark Matter in R-Parity Breaking Vacua
• Physics at Super B Factory
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• Physics at a future Neutrino Factory and super-beam facility
• Neutrino Phenomenology -- the case of two right handed neutrinos
• Big-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature
• 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?
• Measuring the effective complexity of cosmological models
• Probing the seesaw mechanism with neutrino data and leptogenesis
• Flavoured leptogenesis: a successful thermal leptogenesis with N_1 mass below 10^8 GeV
• Prospects for the Zee-Babu Model at the LHC and low energy experiments
• tau -> mu gamma and mu -> e gamma as probes of neutrino mass models
• Markov Chain Monte Carlo Exploration of Minimal Supergravity with Implications for Dark Matter
• The hadronic contribution to (g-2) of the muon
• High Energy Cosmic Rays from the Decay of Gravitino Dark Matter
• Neutrino Masses, Lepton Flavor Mixing and Leptogenesis in the Minimal Seesaw Model
• 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
• On the Feasibility of a Stop NLSP in Gravitino Dark Matter Scenarios
• Primordial Lithium Abundance in Catalyzed Big Bang Nucleosynthesis
• Proof of principle for a high sensitivity search for the electric dipole moment of the electron using the metastable a(1)[^3Σ^+] state of PbO
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• Neutrino masses and cosmic radiation density: Combined analysis
• The Dark Side of mSUGRA
• The Interplay Between the "Low" and "High" Energy CP-Violation in Leptogenesis
• Lepton Flavour Violation in the Constrained MSSM with Natural Neutrino Mass Hierarchy
• From weak-scale observables to leptogenesis
• Viability of Dirac phase leptogenesis
• Lepton Electric Dipole Moments from Heavy States Yukawa Couplings
• The Contribution from Neutrino Yukawa Couplings to Lepton Electric Dipole Moments
• Reconstructing the two right-handed neutrino model
• Charged Lepton Decays L_i to L_j + gamma, Leptogenesis CP-Violating Parameters and Majorana Phases
• Insensitivity of flavoured leptogenesis to low energy CP violation
• Study of flavour dependencies in leptogenesis
• Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
• The Physics Case for the New Muon (g-2) Experiment
• Supersymmetric Leptogenesis and the Gravitino Bound
• Electric dipole moments from flavoured CP violation in SUSY
• Observable Electron EDM and Leptogenesis
• Parametrizations of the Seesaw, or, can the Seesaw be tested?

Cited by in corpus (19)

• Holographic Entanglement Entropy: An Overview
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• EDM constraints on flavored CP-violating phases
• Nonzero ${\theta }_{13}$ and Leptogenesis in a Type-I See-saw Model with $A_4$ Symmetry
• The Interplay Between the "Low" and "High" Energy CP-Violation in Leptogenesis
• 'Mu-Tau' symmetry, tribimaximal mixing and four zero neutrino Yukawa textures
• Phenomenological consequences of four zero neutrino Yukawa textures
• CP Violation in the Lepton Sector and Implications for Leptogenesis
• Casas-Ibarra Parametrization and Unflavored Leptogenesis
• Oxidised cosmic acceleration
• Interplay of LFV and slepton mass splittings at the LHC as a probe of the SUSY seesaw
• SUSY Renormalization Group Effects in Ultra High Energy Neutrinos
• Supersymmetric Grand Unification and Lepton Universality in K-> l νDecays
• Supersymmetric mass spectra for gravitino dark matter with a high reheating temperature
• Fair scans of the seesaw. Consequences for predictions on LFV processes
• Flavoured soft leptogenesis and natural values of the B term
• Probing Supersymmetric Leptogenesis with mu --> e gamma
• Reconstructing Seesaws
• Flavour in Soft Leptogenesis