Constraints on heavy neutrinos

Doug Toussaint, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


If a heavy neutrino of mass 1.1 MeV <m <14 MeV participates in the weak charged current coupling for the electron, then it can be produced in the Sun and decay in flight into an electron, a positron and a light neutrino. It is shown here that existing experimental bounds on low-energy interplanetary positrons severely constrain the heavy neutrino-electron coupling. Accelerator experiments severely constrain the coupling of still heavier neutrinos.

Original languageEnglish (US)
Pages (from-to)777-778
Number of pages2
Issue number5800
StatePublished - 1981

ASJC Scopus subject areas

  • General


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