Time-Varying Nuclear Decay Parameters and Dark Matter

Time-Varying Nuclear Decay Parameters and Dark Matter

Recently published data suggest a possible solar influence on some nuclear decay rates, including evidence for an annual variation attributed to the varying Earth-Sun distance. Here, we consider the possibility that the annual signal seen by the DAMA collaboration, and interpreted by them as evidenc...

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Veröffentlicht in:arXiv.org 2013-07
Hauptverfasser: Nistor, Jonathan, Fischbach, Ephraim, Gruenwald, John T, Javorsek, Daniel, Jenkins, Jere H, Lee, Robert H
Format: Artikel
Sprache:eng
Schlagworte:
Annual variations
Dark matter
Decay rate
Neutrinos
Physics - Cosmology and Nongalactic Astrophysics
Physics - High Energy Physics - Phenomenology
Radioactive contaminants
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Zusammenfassung:Recently published data suggest a possible solar influence on some nuclear decay rates, including evidence for an annual variation attributed to the varying Earth-Sun distance. Here, we consider the possibility that the annual signal seen by the DAMA collaboration, and interpreted by them as evidence for dark matter, may in fact be due to the radioactive contaminant K-40, which is known to be present in their detector. We also consider the possibility that part of the DAMA signal may arise from relic big-bang neutrinos.
ISSN:2331-8422
DOI:10.48550/arxiv.1307.7620