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What have we learnt about the Sun from the measurement of the $^8$B neutrino flux?

G. Fiorentini·B. Ricci
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Abstract

By combining the results of SNO and Super-Kamiokande one can derive - in the absence of sterile neutrinos - the total neutrino flux produced from $^8$B decay in the Sun. We use this information to check the accuracy of several input parameters of solar model calculations. Opacity and p-p fusion cross section are constrained by the $^8$B flux measurement to the level of few per cent. The central solar temperature is determined to the one-percent level. We also find an upper limit for the flux on Earth of sterile neutrinos. We discuss the role of nuclear physics uncertainties on these determinations.

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G. Fiorentini, B. Ricci. 2001-12-20. What have we learnt about the Sun from the measurement of the $^8$B neutrino flux?. https://doi.org/10.1016/s0370-2693(02)01159-0

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