Seasonal Dependence in the Solar Neutrino Flux
High Energy Physics - Phenomenology
2009-09-17 v1 Astrophysics
High Energy Physics - Experiment
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.
Keywords
Cite
@article{arxiv.hep-ph/9903473,
title = {Seasonal Dependence in the Solar Neutrino Flux},
author = {P. C. de Holanda and C. Peña-Garay and M. C. Gonzalez-Garcia and J. W. F. Valle},
journal= {arXiv preprint arXiv:hep-ph/9903473},
year = {2009}
}
Comments
4 pages, latex, RevTeX, two postscript figures