Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-09-21
Phys.Rev. D61 (2000) 073015
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 5 figuress; changed content; added reference for section 1. To appear in Phys. Rev. D (01 April 2000 issue)
Scientific paper
10.1103/PhysRevD.61.073015
Possible outcomes of neutrino events at both Super-Kamiokande and SNO for a type-II supernova are analyzed considering the uncertainties in SN neutrino spectra (temperature) at emission, which may complicate the interpretation of the observed events. With the input of parameters deduced from the current solar and atmospheric experiments, consequences of direct-mass hierarchy $m_{\nu_{\tau}} \gg m_{\nu_{\mu}} > m_{\nu_{e}}$ and inverted-mass hierarchy $m_{\nu_{e}} > m_{\nu_{\mu}} \gg m_{\nu_{\tau}}$ are investigated. Even if the $\nu$ temperatures are not precisely known, we found that future experiments are likely to be able to separate the currently accepted solutions to the solar neutrino problem (SNP): large angle MSW, small angle MSW, and the vacuum oscillation, as well as to distinguish between the direct and inverted mass hierarchies of the neutrinos.
Chiu Shao-Hsuan
Kuo T. K.
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