Can supernovae exclude neutrinos more massive than 30 eV?

Arnon Dar, Jeremy Goodman, Shmuel Nussinov

Research output: Contribution to journalArticlepeer-review

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
Pages (from-to)2146-2149
Number of pages4
JournalPhysical Review Letters
Volume58
Issue number20
DOIs
StatePublished - 1987

Fingerprint

Dive into the research topics of 'Can supernovae exclude neutrinos more massive than 30 eV?'. Together they form a unique fingerprint.

Cite this