Journal
ASTROPARTICLE PHYSICS
Volume 32, Issue 1, Pages 42-46Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.astropartphys.2009.05.004
Keywords
Alpha decays; Beta decays; Solar activity; Fine structure constant; Neutrinos
Funding
- U.S. Department of Energy [DE-AC02-76ER071428]
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Unexplained periodic fluctuations in the decay rates of Si-32 and Ra-226 have been reported by groups at Brookhaven National Laboratory (Si-32), and at the Physikalisch-Technische-Bundesanstalt in Germany (Ra-226). We show from an analysis of the raw data in these experiments that the observed fluctuations are strongly correlated in time, not only with each other, but also with the time of year. We discuss both the possibility that these correlations arise from seasonal influences on the detection system, as well as the suggestion of an annual modulation of the decay rates themselves which vary with Earth-Sun distance. (C) 2009 Elsevier B.V. All rights reserved,
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