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 language||English (US)|
|Number of pages||2|
|State||Published - 1981|
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