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arXiv · hep-ph/9810387

Current Status of the Solar Neutrino Problem with Super-Kamiokande

Hisakazu Minakata·Hiroshi Nunokawa
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Abstract

We perform an updated model-independent analysis using the latest solar neutrino data obtained by $^{37}$Cl and $^{71}$Ga radiochemical experiments, and most notably by a large water-Cherenkov detector SuperKamiokande with their 504 days of data taking. We confirm that the astrophysical solutions to the solar neutrino problem are extremely disfavored by the data and a low-temperature modification of the standard solar model is excluded by more than 5 $σ$. We also propose a new way of illuminating the suppression pattern of various solar neutrino flux without invoking detailed flavor conversion mechanisms. It indicates that the strong suppression of $^7$Be neutrinos is no more true when the neutrino flavor conversion is taken into account.

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Hisakazu Minakata, Hiroshi Nunokawa. 1998-10-17. Current Status of the Solar Neutrino Problem with Super-Kamiokande. https://doi.org/10.1103/physrevd.59.073004

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