Limits to the radiative decays of neutrinos and axions from gamma-ray observations of SN 1987A

Details Limits to the radiative decays of neutrinos and axions from gamma-ray observations of SN 1987A Limits to the radiative decays of neutrinos and axions from gamma-ray observations of SN 1987A

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..62..509k&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 62, Jan. 30, 1989, p. 509-512. Research supported by DOE and Alfred P. Sloan Foun

Physics

56

Gamma Ray Spectrometers, Neutrinos, Radiative Lifetime, Solar Maximum Mission, Supernova 1987A, Black Body Radiation, Photons, Plasmons

Scientific paper

Gamma-ray observations obtained by the SMM gamma-ray spectrometer in the energy range 4.1-6.4 MeV are used to provide limits on the possible radiative decay of neutrinos and axions emitted by SN 1987A. For branching ratio values for the radiative decay modes of less than about 0.0001, the present limits are more stringent than those based upon the photon flux from decaying relic neutrinos. The data are also used to set an axion mass limit.

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