Abstract
Positron emission has been detected in the decay of in a triple coincidence experiment using a liquid-scintillation positron detector and two NaI(Tl) annihilation gamma detectors. A ratio of was found. This corresponds to a ratio of the squared matrix elements of which is in substantial agreement with a theoretical estimate of . The effect of this result on the decay constants of is discussed.
- Received 25 January 1962
DOI:https://doi.org/10.1103/PhysRev.126.1818
©1962 American Physical Society