About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review
Paper
Hyperfine structure of the metastable deuterium atom
Abstract
The hyperfine separation Δν(2S;D) of the metastable 2 S122 state of the deuterium atom has been measured by an atomic-beam magnetic-resonance method that has been described previously. We found that Δν(2S;D)=40 924.439±0.020 kc/sec. From this result and the ground-state separation Δν(1S;D) we obtain R(D)Δν(2S;D)Δν(1S;D)=18(1.000 034 2±0.000 000 6). Comparison of this value with the corresponding quantity for hydrogen, R(H)=18(1.000 034 6±0.000 000 3), confirms within experimental error the theoretical prediction that R(D)=R(H). © 1956 The American Physical Society.