Can supernovae exclude neutrinos more massive than 30 eV?

Arnon Dar, Jeremy Goodman, Shmuel Nussinov

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

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
Volume58
Issue number20
DOIs
StatePublished - Jan 1 1987

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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