A STATISTICAL-ANALYSIS OF THE CHLORINE SOLAR NEUTRINO EXPERIMENT

A detailed analysis is performed so as to reveal the statistical significance of the possible anticorrelation between the solar neutrino flux, measured by the Cl-37 experiment, and the sunspot activity. We find that the new data added since 1986 do contribute to improving the significance of the anticorrelation. However, we also observe that the statistical significance depends upon the treatment of errors rather sensitively. Therefore, we conclude that the anticorrelation is not definitively established at the present stage of the experiment. We also point out the possibility of a new type of correlation.