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Disintegration of Nuclei by -Mesons
Phys. Rev. 78, 683 – Published 15 June, 1950
DOI: https://doi.org/10.1103/PhysRev.78.683
Abstract
Investigations of nuclear disintegrations induced by -meson absorption in nuclear emulsions, exposed to the -meson beam of the 130-in. Rochester cyclotron, have been carried out. The energy spectrum of the protons emitted from the absorptions shows two distinct processes occurring: (a) evaporation of nucleons from an excited nucleus and (b) emission of knock-on protons, brought about by the interaction of a -meson with a multi-particle structure in the nucleus. Of the mesons ending in the emulsion, 10±2 percent give rise to protons with energies ≥30 Mev. Strong evidence is presented for the boson character of the -meson.
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