The solar neutrino problem: Neither astrophysics nor oscillations?

Technical Report · Wed Jun 01 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10155794· OSTI ID:10155794

Smirnov, A Y

There is no consistent solar model which can describe all experimental data on the solar neutrinos. The problem can be formulated essentially in a model independent way. The key points are the comparison of the Homestake and the Kamiokande data as well as the comparison of the GALLEX and SAGE results with minimal signal estimated from the solar luminosity. It is argued that in such a compaxison one should use the Homestake-II data (only after 1986) with caution. The results of the model independent analysis show strong suppression of the beryllium neutrino flux. The data can be well described by the resonant flavor conversion. For the ``low flux model`` which can accommodate the Kamiokande signal, a consistent solution can be found for the neutrino mass squared difference {Delta}m{sup 2} = (0.3 - 1.0) {center_dot} {sup {minus}5} 10 eV{sup 2} and values of mixing angle sin {sup 2} 2{theta} > 5 {center_dot} 10{sup {minus}5} eV{sup 2} and values of mixing angle sin {sup 2} 2{theta} (``very small mixing solution``).

• Research Organization: Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-90ER40561
• OSTI ID: 10155794
• Report Number(s): DOE/ER/40561--136; ON: DE94012850; IN: INT94-13-01; BR: 35KB01000/KB0300000
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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