Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande
The Super-Kamiokande Collaboration: Y.Fukuda, T.Hayakawa, E.Ichihara,, K.Inoue
TL;DR
This paper reports a search for day-night variations in solar neutrino flux at Super-Kamiokande, finding no significant variation and constraining neutrino oscillation parameters.
Contribution
It provides new experimental constraints on neutrino oscillation parameters by analyzing day-night flux variations in solar neutrinos.
Findings
No significant day-night variation observed.
Established exclusion regions in oscillation parameter space.
Improved understanding of neutrino oscillation effects.
Abstract
A search for day-night variations in the solar neutrino flux resulting from neutrino oscillations has been carried out using the 504 day sample of solar neutrino data obtained at Super-Kamiokande. The absence of a significant day-night variation has set an absolute flux independent exclusion region in the two neutrino oscillation parameter space.
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