Magnetic Quenching of Positronium Decay in Water

Abstract
Experiments on magnetic quenching of positronium have been carried out in water and the results obtained by two different techniques are compared. The results were not found to agree with theoretical predictions, the starting assumption being that positronium annihilates by "pick-off" as a free atom. Some considerations are made about the anomalous features of magnetic quenching of positronium in water.