Measuring the 13-mixing angle and the CP phase with neutrino telescopes

Abstract

The observed excess of high-energy cosmic rays from the Galactic plane in the energy range \sim 10^18 eV may be naturally explained by neutron primaries generated in the photo-dissociation of heavy nuclei. In this scenario, neutrons with lower energy decay before reaching the Earth and produce a detectable flux in a 1 km^3 neutrino telescope. The initial flavor composition of these neutrinos, ϕ(\barν_e):ϕ(\barν_μ):ϕ(\barν_τ)=1:0:0, offers the opportunity to perform a combined \barν_μ/\barν_τappearance and \barν_e disappearance experiment. The observable ratio ϕ(\barν_μ)/ϕ(\barν_e+\barν_τ) of fluxes arriving on Earth depends appreciably on the 13-mixing angle θ_13 and the leptonic CP phase δ_CP, opening thus a new experimental avenue to measure these two quantities.

4 pages, 2 eps figures. Enlarged discussion, references added. Matches version to appear in PRL

References in corpus (5)

• Very high energy gamma rays from the direction of Sagittarius A*
• Probing Quantum Decoherence with High-Energy Neutrinos
• The AGASA/SUGAR Anisotropies and TeV Gamma Rays from the Galactic Center: A Possible Signature of Extremely High-energy Neutrons
• Shower Power: Isolating the Prompt Atmospheric Neutrino Flux Using Electron Neutrinos
• Lorentz Invariance Violation and the Spectrum and Source Power of Ultrahigh Energy Cosmic Rays

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• Diffuse Ultra-High Energy Neutrino Fluxes and Physics Beyond the Standard Model
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• Galactic Sources of High-Energy Neutrinos: Highlights
• Non-standard interaction effects on astrophysical neutrino fluxes
• Probing CP violation with the three years ultra-high energy neutrinos from IceCube
• The fraction of muon tracks in cosmic neutrinos
• Ultra High Energy Neutrinos in the Mediterranean: detecting nu_tau and nu_mu with a km^3 Telescope
• Open issues in neutrino astrophysics
• A further study of μ-τsymmetry breaking at neutrino telescopes after the Daya Bay and RENO measurements of θ_{13}
• Flavor Transition Mechanisms of Propagating Astrophysical Neutrinos -A Model Independent Parametrization
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• Neutrino telescopes as a probe of active and sterile neutrino mixings
• Lectures on neutrino phenomenology
• Probing Neutrino Flavor Transition Mechanism with Ultra High Energy Astrophysical Neutrinos
• Canonical Constraints on Leptonic Cp Violation using UHCR neutrino fluxes
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