Disintegration of Slow Mesotrons
- 1 August 1941
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 60 (3), 198-204
- https://doi.org/10.1103/physrev.60.198
Abstract
The disintegration of mesotrons at the end of their range was investigated by means of an improved arrangement of the type already described by the author. The absorption of a mesotron by a block of aluminum or iron is recorded by a system of coincidence and anticoincidence counters. Another system of counters and circuits registers the delayed emission of a particle, which is interpreted as the disintegration electron associated with the absorbed mesotron. The present apparatus enables one to determine the time distribution of the emitted particles and hence the mean life of the decay process, independently of the effects produced by the scattering of mesotrons. The mean life is found to be 1.5±0.3 microseconds, in substantial agreement with the value deduced from the atmospheric absorption effect. The absolute number of disintegration electrons per absorbed mesotron has also been determined (for an Al absorber) and found to be about one-half. This result suggests that, in agreement with theoretical predictions, positive mesotrons undergo spontaneous decay, while the negative ones react with nuclear particles.Keywords
This publication has 10 references indexed in Scilit:
- Theoretische Gesichtspunkte zur Deutung der kosmischen StrahlungPublished by Springer Nature ,2007
- Evidence for the Radioactivity of Slow MesotronsPhysical Review B, 1941
- Differential Measurement of the Meson LifetimePhysical Review B, 1941
- On the Nature of the Meson DecayPhysical Review B, 1941
- Variation of the Rate of Decay of Mesotrons with MomentumPhysical Review B, 1941
- The Genetic Relation Between the Electronic and Mesotronic Components of Cosmic Rays Near and Above Sea LevelPhysical Review B, 1940
- Effect of the Nuclear Coulomb Field on the Capture of Slow MesonsPhysical Review B, 1940
- Evidence for Transformation of Mesotrons into ElectronsNature, 1940
- Energy Distribution and Positive Excess of MesotronsReviews of Modern Physics, 1939
- On the stopping of fast particles and on the creation of positive electronsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1934