Physics
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987stin...8810762d&link_type=abstract
Unknown
Physics
Background Radiation, Neutrinos, Solar Activity, Solar Cycles, Sunspots, Activation, Cosmic Rays, Signal Detection, Solar Atmosphere
Scientific paper
Neutrinos are a by-product of the fusion reactions that are believed to generate the energy radiated by the Sun. Attempts to measure the flux of neutrinos from the Sun yield a result that is in disagreement with theoretical expectations. In addition, a time variation of this flux over the 11-year solar cycle has been observed. In this work, we review the solar neutrino problem, examine the main features of the cosmic-ray field at the Earth, and determine the neutrino flux from the decay of positron emitters resulting from the hadronic cascades induced in the atmosphere by galactic cosmic rays. Further, we study the variation of this background through the Sunspot cycle. Our results indicate that this contribution to the neutrino flux is far too low to account for the observed correlation with solar activity.
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