Search for the radiative decay of a cosmic relic particle with IUE

Details Search for the radiative decay of a cosmic relic particle with IUE Search for the radiative decay of a cosmic relic particle with IUE

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..503b&link_type=abstract

In ESA 4th European IUE Conf. p 503-505 (SEE N84-35135 24-88)

Mathematics

Probability

Background Radiation, Iue, Relic Radiation, Ultraviolet Radiation, Cosmology, Neutrinos, Radioactive Decay, Ultraviolet Spectroscopy

Scientific paper

The authors present a new determination of U.V. background at |bII| ≥ 45° obtained from low resolution large aperture IUE spectra. Aside from the identification of hot interstellar gas emission lines, the authors have fitted to their spectrum a component of the continuum with a power law distribution, as expected from the decay of a primordial relic light particle. From this fit they obtain a candidate mass for the neutrino of 14.8±0.1 eV and a lifetime of 1016 years. The probability that statistical fluctuations could mimic this signal is estimated to be less than 2%. The authors discuss these results in the framework of cosmology and particle physics.

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