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Seasonal dependence in the solar neutrino flux
Holanda, P. C. de; Peña-Garay, C.; González García, Ma. Concepción; Valle, José Wagner Furtado
Universitat de Barcelona
Mikheyev-Smirnov-Wolfenstein (MSW) solutions of the solar neutrino problem predict a seasonal dependence of the zenith angle distribution of the event rates, due to the nonzero 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 sizable 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.
11-05-2010
Astrofísica nuclear
Partícules (Física nuclear)
Neutrins
Nuclear astrophysics
Particles (Nuclear physics)
Neutrinos
(c) The American Physical Society, 1999
Artículo
The American Physical Society
         

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