L. Some observations on the decay of neutral V-particles in photographic emulsions

Abstract

In an examination of two-particle events recorded in photographic emulsions, four examples have been observed of a type similar to the decay of Λ ⁰-particles in Wilson chambers. In three of them, the measured energy-release in the decay is ∼40 mev; in the fourth example it is ∼70mev. An event has also been observed, which appears to correspond to the decay in flight of a ϑ ⁰-particle, emitted from a nuclear disintegration of type 10+f 7p. One of the secondary particles arising from the decay is a negative π-meson. The measured Q value is 202±11 mev.