Number 281 (Story #1), July 29, 1996 by Phillip F. Schewe and Ben Stein
SOLAR NEUTRINO FLUX IS NOT CORRELATED WITH SUNSPOT ACTIVITY. The Kamiokande detector, situated a kilometer underground west of Tokyo, has been watching the sun since January 1987. It sees not the photons that come from the bright surface but rather the neutrinos that issue from the sun's core. In the past decade Kamiokande has ascertained several facts: neutrinos do come from the direction of the sun (in case there were any doubt); the neutrinos are largely those from the decay of boron-8 (other detectors specialize in neutrinos coming from additional nuclear reactions in the sun); and the neutrinos show no day/night preference. Having monitored our local star over almost a complete 11-year solar cycle, the researchers (Yoichiro Suzuki, suzuki@icrkm4.icrr.u-tokyo.ac.jp) now take stock of their neutrino inventory and report that the neutrino flux shows no correlation with sunspot activity. (Y. Fukuda et al., Physical Review Letters, 26 August 1996.)
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