Solar Neutrinos

The predicted capture rate in the ${\mathrm{Cl}}^{37}$ experiment for detecting solar neutrinos is calculated using the results of recent nuclear experiments and solar-model investigations. It is shown that additional experiments (e.g., with ${\mathrm{H}}^2$, ${\mathrm{Li}}^7$, ${\mathrm{B}}^{11}$, or $\nu -e$ scattering) are necessary to establish the relative contributions of the proton-proton chain and the CNO cycle to solar energy generation.