Astrophysical tests for radiative decay of neutrinos and fundamental physics implications

Details Astrophysical tests for radiative decay of neutrinos and fundamental physics implications Astrophysical tests for radiative decay of neutrinos and fundamental physics implications

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8220098s&link_type=abstract

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Astronomy and Astrophysics

Astrophysics

Astronomical Models, Astrophysics, Neutrinos, Particle Emission, Radiative Lifetime, Big Bang Cosmology, Dirac Equation, Field Theory (Physics), Galaxies, Leptons, Mass Distribution, Mathematical Models, Photons, Quarks, Ultraviolet Radiation

Scientific paper

The radiative lifetime tau for the decay of massious neutrinos was calculated using various physical models for neutrino decay. The results were then related to the astrophysical problem of the detectability of the decay photons from cosmic neutrinos. Conversely, the astrophysical data were used to place lower limits on tau. These limits are all well below predicted values. However, an observed feature at approximately 1700 A in the ultraviolet background radiation at high galactic latitudes may be from the decay of neutrinos with mass approximately 14 eV. This would require a decay rate much larger than the predictions of standard models but could be indicative of a decay rate possible in composite models or other new physics. Thus an important test for substructure in leptons and quarks or other physics beyond the standard electroweak model may have been found.

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