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arXiv · hep-ph/9903473

Seasonal Dependence in the Solar Neutrino Flux

P. C. de Holanda·C. Peña-Garay·M. C. Gonzalez-Garcia·J. W. F. Valle
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Abstract

MSW solutions of the solar neutrino problem predict a seasonal dependence of the zenith angle distribution of the event rates, due to the non-zero latitude at the Super-Kamiokande site. We calculate this seasonal dependence and compare it with the expectations in the no-oscillation case as well as just-so scenario, in the light of the latest Super-Kamiokande 708-day data. The seasonal dependence can be sizeable in the large mixing angle MSW solution and would be correlated with the day-night effect. This may be used to discriminate between MSW and just-so scenarios and should be taken into account in refined fits of the data.

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P. C. de Holanda, C. Peña-Garay, M. C. Gonzalez-Garcia, J. W. F. Valle. 1999-03-24. Seasonal Dependence in the Solar Neutrino Flux. https://doi.org/10.1103/physrevd.60.093010

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