Abstract
THE theory of quantum electrodynamics predicts the occasional emission of an electron-positron pair from an excited nucleus in place of a hard γ-ray. The probability of this event, or the ‘pair conversion coefficient’, has been calculated by Rose1. It is dependent on the quantum energy and on the multipole character of the nuclear transition.
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References
Rose, M. E., Phys. Rev., 76, 678 (1949).
Bradt, E., Halter, J., Heine, H. G., and Scherrer, P., Helv. Phys. Acta, 19, 445 (1946).
Brady, E. L., and Deutsch, M., Phys. Rev., 78, 558 (1950).
Rae, E. R., Phil. Mag., 40, 1155 (1949).
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MIMS, W., HALBAN, H. & WILSON, R. Internal Pair Creation in Magnesium-24. Nature 166, 1027–1028 (1950). https://doi.org/10.1038/1661027b0
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DOI: https://doi.org/10.1038/1661027b0
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