8B Solar Neutrinos Research Articles

The Kamiokande Solar Neutrino Experiment

AbstractThe observation of 8B solar Neutrinos in the Kamiokande-II detector is presented. Based on 450 days of data in the time period of January 1987 through May 1988, the measured flux obtained with Ee ≥ 9.3 MeV was 0.46 ± 0.13 (stat) ± 0.08 (sys) of the value predicted by the standard solar model. The detector and analysis methods were improved since June 1988 and the background level has been decreased by a factor of about three since then.

Low energy neutrino reactions in water Cherenkov detectors

I discuss the charge-current nuclear response of water Cherenkov detectors to neutrinos from supernovae, the neutral current nuclear response of carbon-bearing liquid scintillation detectors, and the possibility of detecting 8B solar neutrinos with a water Cherenkov detector enriched in 18O.

Solar neutrinos and low-energy nuclear cross sections

The rate of capture of solar neutrinos per 37Cl atom is found to be 0.7 × 10 −35 sec −1 and 4.9 × 10 −35 sec −1 for two extreme assumptions regarding the measured low-energy nuclear cross sections. The dependence of the 8B solar neutrino flux on the low-energy cross-section factor for 3He(α,γ) 7Be, S 34 is found to be S 34 0.7.