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arXiv · hep-ph/9706228

Fourier analysis of real-time, high-statistics solar neutrino observations

G. L. Fogli·E. Lisi·D. Montanino
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Abstract

Solar neutrino oscillations with wavelengths comparable to the Earth-Sun distance provide a viable explanations of the long-standing solar neutrino deficit. They imply a time-dependent modulation of the solar neutrino flux due to the eccentricity of the Earth orbit. Motivated by this testable prediction, we propose a Fourier analysis of the signal observable in real-time, solar neutrino experiments. We give the general expressions of the Fourier coefficients and of their correlated uncertainties in the presence of background. The expressions assume a particularly compact form in the case of two-flavor neutrino oscillations in vacuum. We discuss the sensitivity to the lowest harmonics of the new-generation, high-statistics experiments SuperKamiokande, Sudbury Neutrino Observatory, and Borexino.

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G. L. Fogli, E. Lisi, D. Montanino. 1997-06-03. Fourier analysis of real-time, high-statistics solar neutrino observations. https://doi.org/10.1103/physrevd.56.4374

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