Abstract
IT is now generally agreed that the theory of the -transformations of atomic nuclei developed by Fermi1 on the hypothesis that a neutrino is emitted as well as a -particle gives a formal explanation of the main phenomena. Fermi introduced an interaction of a new type between the heavy particles in the nucleus and the electron and neutrino. His theory was later modified by Konopinski and Uhlenbeck2, in order to avoid certain discrepancies with experiment. Both the original Fermi theory and the Konopinski-Uhlenbeck form give a relation between the period of the transforming nucleus and the maximum energy of the emitted -ray, and predict the shape of the -ray spectrum.
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References
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RICHARDSON, H. Relations in -Ray Transformations and the Neutrino Theory. Nature 139, 505–506 (1937). https://doi.org/10.1038/139505a0
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DOI: https://doi.org/10.1038/139505a0
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