Abstract
THE existence of a penetrating component in extensive atmospheric showers has been investigated by several workers1, using different methods. Results obtained with cloud-chambers2 do not seem to justify a final conclusion. Cocconi and co-workers3, using counters, decided in favour of the presence of meson showers simultaneous with extensive showers ; more recently, Rogozinski4, using counters driving neon lamps, concludes that mesons are probably associated with extensive showers.
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References
Rogozinski, A., Phys. Rev., 65, 291 (1944), and references cited there.
Auger, P., and Daudin, J., C.R. Acad. Sci. Paris, 209, 481 (1939).
Jánossy, L., and Lovell, A. C. B. Nature, 142, 716 (1938). Daudin, J., thèse, Paris (1942).
Cocconi, G., Loverdo, A., and Tongiorgi, V., Nuovo Cimento, ix, 1, 49 (1943); ix, 2, 28 (1944).
Rogozinski, A., thèse, Paris (1945).
Arley, N., Proc. Roy. Soc., A, 168, 519 (1938).
Molière, G., "Vorträge über Kosmische Strahlung" (Berlin, 1943).
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MURA, A., SALVINI, G. & TAGLIAFERRI, G. Presence of a Penetrating Component in Extensive Showers in the Atmosphere. Nature 159, 367–369 (1947). https://doi.org/10.1038/159367b0
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DOI: https://doi.org/10.1038/159367b0
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