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Points from Foregoing Letters

Nature volume 145, page 111 (20 January 1940) | Download Citation



Evidence, in the form of a cloud-chamber photograph, is given by E. J. Williams and G. E. Roberts for the transformation of mesotrons into electrons. This bears out the supposition that the mesotron is identical with the particle assumed by Yukawa in his theory of nuclear forces and β-disintegration.

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