Solar neutrino measurement in SK and larger detector

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The results of solar neutrino data from the first phase of Super-Kamiokande (SK-I) are presented. Super-Kamiokande can measure not only the solar neutrino flux but also its energy spectrum and time variations such as day-night and seasonal differences. The detail oscillation analysis using those information is appeared. Combining all the solar and KamLAND reactor data, the obtained oscillation parameters are determined as Δm2 = 8.3 × 10-5 eV2 and tan2 θ = 0.38. The recent results in the second phase of SK (SK-II) are also presented, and its flux, spectrum and time variation are consistent with SK-I. The possibility of future water cherenkov detectors, such as SK-III and Mega-ton class detector, are described. If the current neutrino oscillation parameter is assumed, its spectrum has deficit in the lower energy region. And the possibility of the day-night asymmetry is also discussed.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Issue number1-3 SPEC. ISS.
Publication statusPublished - Aug 1 2005
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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