Proton and Electron

Abstract

THE ratio of the mass of the proton, Mr, to that of the electron, me, is a pure number which is likely to be of considerable importance in physical theory. In a recent letter, Dr. W. N. Bond 1 has deduced for this ratio the value 1846.57 ± 0.48 with a probable error which should be accurate to about ten per cent. This is very close to the ‘deflection’ value of Birge,2 1846.61 ± 2, but larger than the ‘spectroscopic’ value 1838.26 ± 1.

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References

  1. 1

    W. N. Bond, NATURE, 127, p. 164 and p. 557? 1931.

  2. 2

    Birge, Phys. Rev., Supplement, vol. 1, No. 1, pp. 1–73; 1929.

  3. 3

    Rojansky, NATURE, 123, p. 911; 1929.

  4. 4

    Eddington, NATURE, 126, p. 942; 1930.

  5. 5

    Witmer, NATURE. 124, p. 180; 1929.

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    Fürth, Phys. Zeitsch., vol. 30, p. 895; 1929.

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    Proca, Journal de Physique, p. 235, July 1930.

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ALLEN, H. Proton and Electron. Nature 127, 662–663 (1931). https://doi.org/10.1038/127662b0

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