Can supernovae exclude neutrinos more massive than 30 eV?

Arnon Dar, Jeremy Goodman, Shmuel Nussinov

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Neutron stars formed in supernovae are very intense sources of neutrinos of all species and masses 100 MeV. If such neutrinos decayed via He+e-+e- inside the Galaxy, annihilation of the trapped positrons would yield a 511-keV line exceeding the experimental bounds by many orders of magnitude. This allows us to exclude decay lifetimes in the range 104-1015 sec for neutrinos of mass 1-100 MeV. Our result corroborates and extends earlier astrophysical bounds.

Original languageEnglish (US)
Pages (from-to)2146-2149
Number of pages4
JournalPhysical review letters
Issue number20
StatePublished - Jan 1 1987

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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