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Cloud-Chamber Observations of the New Unstable Cosmic-Ray Particles
Phys. Rev. 78, 290 – Published 1 May, 1950
DOI: https://doi.org/10.1103/PhysRev.78.290
Abstract
Thirty-four "forked tracks" similar to two previously reported by Rochester and Butler have been observed in 11,000 cloud-chamber photographs of cosmic-ray penetrating showers, confirming their conclusion that new unstable neutral and charged particles exist. The lifetime of the neutral particles is found to be about 3× sec., and some information as to the nature of the decay products is given.
References (2)
- G. D. Rochester and C. C. Butler, Nature 160, 855 (1947)
- Leighton, Anderson, and Seriff, Phys. Rev. 75, 1432 (1949)