Abstract
A DETERMINATION of the relative masses of π and μ-mesons by photoelectric measurement of track densities in an Ilford G5 plate was described by von Friesen and Kristiansson1. The measurements yielded results which deviated appreciably from 1.32, but no explanation of the anomaly could be given2. It now appears, however, that the matter can be explained as a photographic fading effect.
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References
Von Friesen and Kristiansson, Nature, 168, 377 (1951).
Gustafsson, Nature, 168, 377 (1951).
Albouy and Faraggi, J. Phys. et le Rad., 10, 105 (1949).
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KRISTIANSSON, K. Influence of Fading on the Measurement of Mass Ratios in Nuclear Emulsions. Nature 173, 78–79 (1954). https://doi.org/10.1038/173078a0
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DOI: https://doi.org/10.1038/173078a0
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