Comparative Analysis of Brookhaven National Laboratory Nuclear Decay Data and Super-Kamiokande Neutrino Data: Indication of a Solar Connection

Understand

An experiment carried out at the Brookhaven National Laboratory from February 1982 to December 1989 acquired 364 measurements of the beta-decay rates of a sample of 36Cl and of a sample of 32Si.

• The experimenters reported finding small periodic annual deviations of the data points from an exponential decay - of uncertain origin.
• We here analyze this dataset by power spectrum analysis and by forming spectrograms and phasegrams.
• We confirm the occurrence of annual oscillations but we also find evidence of oscillations in a band of frequencies appropriate for the internal rotation of the Sun.