Solar models, neutrino experiments, and helioseismology

Statistics – Computation

Scientific paper

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Helioseismology, Solar Neutrinos, Stellar Models, Sun, Absorption Cross Sections, Computational Astrophysics, Monte Carlo Method, P Waves, Solar Spectra

Scientific paper

The event rates and their recognized uncertainties are calculated for eleven solar neutrino experiments using accurate solar models. The same solar models are used to evaluate the frequency spectrum of the p and g oscillation modes of the Sun and to compare with existing observations. A numerical table of the characteristics of the standard solar model is presented. Improved values have been calculated for all of the neutrino absorption cross sections evaluating the uncertainties for each neutrino source and detector as well as the best estimates. The neutrino capture rate calculated from the standard solar model for the 37Cl experiment is (7.91±0.33) SNU, which spans the total theoretical range; the rate observed by Davis and his associates is (2.0±0.3) SNU. The various proposed solutions to the solar neutrino problem are reviewed. A solar model is constructed with a drastically altered nuclear energy generation that eliminates entirely the important high-energy 8B and 7Be neutrinos, but which affects by less than 0.01% the calculated p-mode oscillation frequencies.

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