Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phrvl..46...80k&link_type=abstract
Physical Review Letters, vol. 46, Jan. 12, 1981, p. 80-83. Research supported by the Danish Space Board;
Astronomy and Astrophysics
Astrophysics
58
Astrophysics, Decay Rates, Neutrinos, Radiative Lifetime, Radioactive Decay, Background Radiation, Constraints, Far Ultraviolet Radiation, Particle Mass, Photon Density
Scientific paper
Upper limits to astronomical photon backgrounds are used to derive constraints on the radiative lifetime of neutrinos. With the assumption that the radiative decay dominates the decay routes available, comparisons with predicted fluxes exclude radiative lifetimes between 10 to the 13th and 10 to the 22nd-23rd sec for neutrinos which decay to lighter neutrinos and 5-50 eV photons. For a secondary neutrino mass much less than the parent neutrino mass, this photon-energy range corresponds to a parent-neutrino-mass range of 10-100 eV/c-squared.
Bowyer Stuart
Jakobsen Peter
Kimble Randy
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