Abstract
ABOUT three years ago, the first period of investigation of the structure of the atomic nucleus may be considered to have closed. This period, of which the achievements include the artificial disintegration of the nuclei by alpha particles, the investigation of the energies of the protons ejected from these nuclei and the first investigation of nuclear levels by means of the beta ray spectra, was characterised by the general belief that all nuclei were, in the ultimate, to be considered as being built up of protons and electrons. The only other particle of an elementary kind which was considered as a nuclear constituent was the alpha particle, and this was generally accepted as being itself built up of 4 protons and 2 electrons.
Article PDF
References
See also NATURE, August 18, p. 237. Ed.
Rights and permissions
About this article
Cite this article
ANDRADE, E. The New Elementary Particles. Nature 134, 345–347 (1934). https://doi.org/10.1038/134345a0
Issue Date:
DOI: https://doi.org/10.1038/134345a0