What Do We (Not) Know Theoretically about Solar Neutrino Fluxes?

Solar model predictions of ⁸B and p-p neutrinos agree with the experimentally determined fluxes (including oscillations): φ(pp)_measured=(1.02±00.02±0.01)φ(pp)_theory and φ(⁸B)_measured=(0.88±0.04±0.23)φ(⁸B)_theory, 1σ experimental and theoretical uncertainties, respectively. We use improved input data for nuclear fusion reactions, the equation of state, and the chemical composition of the Sun. The solar composition is the dominant uncertainty in calculating the ⁸B and CNO neutrino fluxes; the cross section for the ³He(⁴He,γ)⁷Be reaction is the most important uncertainty for the calculated ⁷Be neutrino flux.