Addendum: The SNO Solar Neutrino Data, Neutrinoless Double Beta-Decay and Neutrino Mass Spectrum

Abstract

We update our earlier study in [1], which was inspired by the 2002 SNO data, on the implications of the results of the solar neutrino experiments for the predictions of the effective Majorana mass in neutrinoless double beta-decay, |<m>|. We obtain predictions for |<m>| using the values of the neutrino oscillation parameters, obtained in the analyzes of the presently available solar neutrino data, including the just published data from the salt phase of the SNO experiment, the atmospheric neutrino and CHOOZ data and the first data from the KamLAND experiment. The main conclusion reached in ref. [1] of the existence of significant lower bounds on |<m>| in the cases of neutrino mass spectrum of inverted hierarchical (IH) and quasi-degenerate (QD) type is strongly reinforced by fact that combined solar neutrino data i) exclude the possibility of cos(2 θ_\odot)=0 at more than 5 s.d., ii) determine as a best fit value cos(2 θ_\odot)=0.40, and ii) imply at 95% C.L. that cos(2 θ_\odot) \geq 0.22, θ_\odot being the solar neutrino mixing angle. For the IH and QD spectra we get using, e.g., the 90% C.L. allowed ranges of values of the oscillation parameters, |<m>| \geq 0.010 eV and |<m>| \geq 0.043 eV, respectively. We also comment on the possibility to get information on the neutrino mass spectrum and on the CP-violation in the lepton sector due to Majorana CP-violating phases.

12 pages, Latex; the text contains 3 tables; 10 pages of text, 2 ps-figures

References in corpus (8)

• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment
• The SNO Solar Neutrino Data, Neutrinoless Double Beta-Decay and Neutrino Mass Spectrum
• Solar neutrino oscillation parameters after first KamLAND results
• Status of atmospheric neutrino(mu)<-->neutrino(tau) oscillations and decoherence after the first K2K spectral data
• On the CP Violation Associated with Majorana Neutrinos and Neutrinoless Double-Beta Decay
• On the Neutrino Mass Spectrum and Neutrinoless Double-Beta Decay
• The Solar Neutrino Problem after the first results from Kamland

Cited by in corpus (45)

• Theory of Neutrinos: A White Paper
• Double Beta Decay
• Physics at a future Neutrino Factory and super-beam facility
• Neutrinoless double beta decay and neutrino physics
• The Absolute Neutrino Mass Scale, Neutrino Mass Spectrum, Majorana CP-Violation and Neutrinoless Double-Beta Decay
• The mu - e Conversion in Nuclei, mu --> e gamma, mu --> 3e Decays and TeV Scale See-Saw Scenarios of Neutrino Mass Generation
• Low Energy Signatures of the TeV Scale See-Saw Mechanism
• Theta-13 as a Probe of Mu-Tau symmetry for Leptons
• Massive Neutrinos and Flavour Violation
• A New Limit on the Neutrinoless DBD of 130Te
• The See-Saw Mechanism, Neutrino Yukawa Couplings, LFV Decays l_i to l_j + gamma and Leptogenesis
• Determining the Neutrino Mass Hierarchy with Atmospheric Neutrinos
• Bi-large Neutrino Mixing and CP violation in an SO(10) SUSY GUT for Fermion Masses
• Mixing angle and phase correlations from A5 with generalised CP and their prospects for discovery
• Measurement of double beta decay of 100Mo to excited states in the NEMO 3 experiment
• Three-Neutrino Oscillations of Atmospheric Neutrinos, theta13, Neutrino Mass Hierarchy and Iron Magnetized Detectors
• Majorana CP-Violating Phases, RG Running of Neutrino Mixing Parameters and Charged Lepton Flavour Violating Decays
• Uncovering Multiple CP-Nonconserving Mechanisms of $\betabeta$-Decay
• A Supersymmetric D4 Model for mu-tau Symmetry
• Majorana Neutrinos, Neutrino Mass Spectrum and the |<m>| ~ 0.001 eV Frontier in Neutrinoless Double Beta Decay
• Predictions for Leptonic Mixing Angle Correlations and Non-trivial Dirac CP Violation from $A_5$ with Generalised CP Symmetry
• Neutrinoless Double Beta Decay in the Presence of Light Sterile Neutrinos
• Contrasting solar and reactor neutrinos with a non-zero value of theta13
• Neutrinoless Double Beta Decay and Future Neutrino Oscillation Precision Experiments
• The Majorana neutrino masses, neutrinoless double beta decay and nuclear matrix elements
• SO(10) SUSY GUT for Fermion Masses : Lepton Flavor and CP Violation
• Theoretical Prospects of Neutrinoless Double Beta Decay
• Super-NOvA: a long-baseline neutrino experiment with two off-axis detectors
• A Case of Subdominant/Suppressed "High Energy" Contribution to the Baryon Asymmetry of the Universe in Flavoured Leptogenesis
• Predictions for the Majorana CP Violation Phases in the Neutrino Mixing Matrix and Neutrinoless Double Beta Decay
• Study of 2b-decay of Mo-100 and Se-82 using the NEMO3 detector
• Determining the Neutrino Mass Hierarchy and CP Violation in NOvA with a Second Off-Axis Detector
• Charged Lepton Decays L_i to L_j + gamma, Leptogenesis CP-Violating Parameters and Majorana Phases
• Neutrino Mass Hierarchy Determination Using Reactor Antineutrinos
• Double Beta Decay of ${}^{100}$Mo to Excited Final States
• Neutrinoless Double Beta Decay and H^{\pm\pm}\to {l'}^\pm l^\pm Decays in the Higgs Triplet Model
• Neutrino Mixing and Leptonic CP Violation from $S_4$ Flavour and Generalised CP Symmetries
• Neutrinoless double beta decay and neutrino mass hierarchies
• Double beta decay versus cosmology: Majorana CP phases and nuclear matrix elements
• Predictions from non trivial Quark-Lepton complementarity
• A Comment on the Measurement of Neutrino Masses in Beta-Decay Experiments
• Majorana Neutrino Mixing
• Nearest-Neighbour-Interactions from a minimal discrete flavour symmetry within SU(5) Grand Unification
• Phenomenology of Absolute Neutrino Masses
• Neutrino Masses, Mixing and New Physics Effects