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On the Theory of Excitation by Collision with Heavy Particles

Published online by Cambridge University Press:  24 October 2008

N. F. Mott
N. F. Mott
Affiliation:
Gonville and Caius College
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Extract

1. It has been shown, in a well-known paper by Born and Oppenheimer, that in evaluating the energy levels of a molecule, the nuclei may be treated as fixed, or slowly vibrating, centres of force. If M be the average mass of the nuclei, and m the mass of an electron, the error involved in doing this is of order of magnitude (m/M)½. The possibility therefore of treating the nuclei as fixed depends on their great mass, compared with that of the electron.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 27 , Issue 4 , October 1931 , pp. 553 - 560
Copyright
Copyright © Cambridge Philosophical Society 1931

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References

* Ann. der Phys. Vol. 84, p. 457 (1927)Google Scholar. A simpler method is given by Condon, and Morse, , Quantum Mechanics, p. 153.Google Scholar

† Proc. Camb. Phil. Soc. vol. 23, p. 732 (1927).Google Scholar

‡ Ann. der Phys. vol. 5, p. 325 (1930)Google Scholar.

§ K. Akad. van Wet. te Amsterdam, vol. 33, p. 9 (1930).Google Scholar

† Proc. Roy. Soc. A, Vol. 128, p. 330 (1930).Google Scholar

* Bethe, loc. cit.

† Zeits. f. Physik, vol. 44, p. 445 (1927).Google Scholar

‡ Zeits. f. Physik, Vol. 45, p. 311 (1927). See also Condon, Reviews of Modern Physics, vol. 3, p. 43 (1931).Google Scholar

§ Loc. cit.