Paper 5.1: "Theory of Molecular Hydrogen and Deuterium in Magnetic Fields," N. F. Ramsey, Phys. Rev. 85, 60–65 (1952)
Reprinted with permission from The Physical Review. Copyright 1952, The American Physical Society.
The theory of molecular H2, D2 and HD presented in Papers 1.1, 2.1 and 2.2 was adequate for our first molecular beam magnetic resonance experiments at high magnetic fields, but, as we aimed for more accurate experiments with our new separated oscillatory field apparatus, it was clear we needed a more accurate general theory. This improved theory is applicable at low, intermediate and high fields as well as including nuclear magnetic shielding. This paper was used in a number of experiments, including those in Papers 2.4 and 2.5.
Several years later, when we were planning experiments with HD, H. B. Lewis and I wrote a similar theoretical paper on HD [Phys. Rev. 108, 1246–1250 (1957)]. It was used in the analysis of the experiments described in Paper 2.5 and the experimental paper by R. F. Code and me [Phys. Rev. A4, 1945–1959 (1971)].
