(3+2) Neutrino Scheme From A Singular Double See-Saw Mechanism

Abstract

We obtain a 3+2 neutrino spectrum within a left-right symmetric framework by invoking a singular double see-saw mechanism. Higgs doublets are employed to break $S{U}_R(2)$ and three additional fermions, singlets under the left-right symmetric gauge group, are included. The introduction of a singularity into the singlet fermion Majorana mass matrix results in a light neutrino sector of three neutrinos containing predominantly ${\nu }_{\alpha L}$, $\alpha =e,\mu ,\tau$, separated from two neutrinos containing a small ${\nu }_{\alpha L}$ component. The resulting active-sterile mixing in the $5\times 5$ mixing matrix is specified once the mass eigenvalues and the $3\times 3$ submatrix corresponding to the MNS mixing matrix are known.

arXiv comment5 pages, matches published version

References in corpus (35)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Evidence for oscillation of atmospheric neutrinos
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data
• Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment
• Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station
• Evidence for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations from the LSND Experiment at LAMPF
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
• Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations
• Solar Fusion Cross Sections
• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Candidate Events in a Search for Muon Antineutrino to Electron Antineutrino Oscillations
• Study of the atmospheric neutrino flux in the multi-GeV energy range
• Final results from the Palo Verde Neutrino Oscillation Experiment
• Measurement of the atmospheric neutrino flavour composition in Soudan 2
• Primordial Nucleosynthesis in Light of WMAP
• Neutrino Mass Models
• Evidence for nu_mu -> nu_e Oscillations from Pion Decay in Flight Neutrinos
• Symmetry realization of texture zeros
• A new upper limit on the total neutrino mass from the 2dF Galaxy Redshift Survey
• Ruling out four-neutrino oscillation interpretations of the LSND anomaly?
• Precise measurement of the ^7Be(p,gamma)^8B S-factor
• (3+1)-spectrum of neutrino masses: A chance for LSND?
• Electromagnetic dissociation of 8B and the astrophysical S factor for 7Be(p,gamma)8B
• Implications of CHOOZ results for the decoupling of solar and atmospheric neutrino oscillations
• Simple Model for (3+2) Neutrino Oscillations
• Neutrino Physics: Open Theoretical Questions
• Three Neutrino $\Delta m^2$ scales and Singular Seesaw Mechanism
• The hidden sterile neutrino and the (2+2) sum rule
• Are four neutrino models ruled out?
• Some comments on Super-Kamiokande's multi-ring analysis

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• Low Intermediate Scales for Leptogenesis in Supersymmetric SO(10) Grand Unified Theories
• Chiral Gauge Models for Light Sterile Neutrinos
• Neutrino Masses in the Effective Rank-5 Subgroups of E_6 I: Non-supersymmetric Case
• Neutrino Masses in the Effective Rank-5 Subgroups of E_6 II: Supersymmetric Case
• Active-sterile neutrino mixing in the absence of bare active neutrino mass
• Multichannel oscillations and relations between LSND, KARMEN and MiniBooNE, with and without CP violation
• Measuring the mass of a sterile neutrino with a very short baseline reactor experiment
• Local demands on sterile neutrinos