Abstract
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) |
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Pages (from-to) | 777-778 |
Number of pages | 2 |
Journal | Nature |
Volume | 289 |
Issue number | 5800 |
DOIs | |
State | Published - 1981 |
ASJC Scopus subject areas
- General