Four-Neutrino Mixing and Big-Bang Nucleosynthesis

Abstract

We investigate the Big-Bang Nucleosynthesis constraints on neutrino mixing in the framework of the two four-neutrino schemes that are favored by the results of neutrino oscillation experiments. We discuss the implications of these constraints for terrestrial short and long-baseline neutrino oscillation experiments and we present some possibilities of testing them in these experiments. In particular, we show that from the Big-Bang Nucleosynthesis constraints it follows that the nu(mu)->nu(tau) transition is severely suppressed in short-baseline experiments, whereas its oscillation amplitude in long-baseline experiments is of order 1. We also propose a new parameterization of the four-neutrino mixing matrix U which is appropriate for the schemes under consideration.

27 pages including 3 figures

References in corpus (10)

• Evidence for oscillation of atmospheric neutrinos
• Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days
• Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
• Measurement of a small atmospheric ${\nu }_{\mu }/{\nu }_e$ ratio
• Neutrino Beams from Muon Storage Rings: Characteristics and Physics Potential
• Long-baseline neutrino oscillation experiments and CP violation in the lepton sector
• Four-Way Neutrino Oscillations
• Neutrinos in Physics and Astrophysics
• Update on Atmospheric Neutrinos
• A four-neutrino mixing scheme for observed neutrino data

Cited by in corpus (30)

• Sterile neutrino oscillations after first MiniBooNE results
• Effects of neutrino mixing on high-energy cosmic neutrino flux
• Explaining LSND by a decaying sterile neutrino
• Interesting radiative patterns of neutrino mass in an SU(3)_C X SU(3)_L X U(1)_X model with right-handed neutrinos
• Naturally light right-handed neutrinos in a 3-3-1 Model
• Sterile Neutrinos in Light of Recent Cosmological and Oscillation Data: a Multi-Flavor Scheme Approach
• Four--Neutrino Oscillation Solutions of the Solar Neutrino Problem
• Detecting sterile neutrinos with KATRIN like experiments
• Four-neutrino oscillation solutions of the atmospheric neutrino anomaly
• Solar and Atmospheric Four-Neutrino Oscillations
• Status of four-neutrino mass schemes: a global and unified approach to current neutrino oscillation data
• Matter Effects in Four-Neutrino Mixing
• Cornering (3+1) sterile neutrino schemes
• MiniBooNE Results and Neutrino Schemes with 2 sterile Neutrinos: Possible Mass Orderings and Observables related to Neutrino Masses
• Constraining Mass Spectra with Sterile Neutrinos from Neutrinoless Double Beta Decay, Tritium Beta Decay and Cosmology
• KeV right-handed neutrinos from type II seesaw mechanism in a 3-3-1 model
• The discovery channel at the Neutrino Factory: ${\nu }_{\mu }\to {\nu }_{\tau }$ pointing to sterile neutrinos
• Neutrinoless double-beta decay with three or four neutrino mixing
• Hierarchical Four-Neutrino Oscillations With a Decay Option
• Constraining sterile neutrinos with a low energy beta-beam
• The Increase in the Primordial He-4 Yield in the Two-Doublet Four-Neutrino Mixing Scheme
• Zee Neutrino Mass Matrix in the Gauge Mediated Supersymmetry Breaking Scenario
• Finally neutrino has mass
• Neutrino oscillations and neutrinoless double-beta decay
• Analysis of the Superkamiokande atmospheric neutrino data in the framework of four neutrino mixings
• See-saw mechanism and four light neutrino state
• Neutrino Oscillations and the Early Universe
• Four-neutrino MS^2 mixing
• Constraining sterile neutrinos with a low energy beta-beam
• Invisible Z decay width bounds on active-sterile neutrino mixing in the (3+1) and (3+2) models