Elsevier

Astroparticle Physics

Volume 1, Issue 4, December 1993, Pages 377-386
Astroparticle Physics

Supernova bounds on neutrino radiative decays

https://doi.org/10.1016/0927-6505(93)90004-WGet rights and content

Abstract

The Solar Maximum Mission satellite did not record any γ-ray counts in excess of the background for a time interval of 223 s after the arrival of the first νe's from the supernova 1987A. On the basis of the original data we derive a new 3σ upper limit on the γ fluence for this period and derive improved bounds on the νiνjγ and νTνeee+γ radiative decay channels for neutrino masses up to the experimentally allowed value of around 30 MeV.

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