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Type: Artigo de periódico
Title: Seasonal dependence in the solar neutrino flux
Author: de Holanda, PC
Pena-Garay, C
Gonzalez-Garcia, MC
Valle, JWF
Abstract: 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. [S0556-2821(99)08419-2].
Country: EUA
Editor: American Physical Soc
Rights: aberto
Date Issue: 1999
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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