Possible evidence for a radiatively decaying neutrino

Details Possible evidence for a radiatively decaying neutrino Possible evidence for a radiatively decaying neutrino

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..56.1031m&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 56, March 10, 1986, p. 1031-1034. BMFT-supported research.

Astronomy and Astrophysics

Astronomy

12

Big Bang Cosmology, Cosmic Rays, Neutrinos, Radioactive Decay, Relic Radiation, Ultraviolet Radiation, Hubble Constant, Quantum Numbers, Radiative Lifetime, Ultraviolet Astronomy

Scientific paper

Consideration is given to some nonstandard electroweak models which are able to explain the observed steplike structure in the cosmic background radiation at a + 1667 + or - 10 A as due to radiative decays of massive cosmic neutrinos. In the standard electroweak theory the corresponding radiative lifetime is several orders of magnitude longer than observed, because of the purely left-handed structure of the charged weak currents. It is pointed out that in models which include also right-handed also right-handed currents, the lifetime can naturally be short enough to account for the astrophysical observations.

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