Measurement of the hydrogen-tritium gJ-factor ratio

Daniel John Larson, N. F. Ramsey

Research output: Contribution to journalArticlepeer-review

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A hydrogen maser operating at fields of up to 16 G has been used as a spin-exchange detector of Zeeman transitions in the hyperfine spectra of hydrogen and tritium. The maser oscillates on the field-dependent π transition which is sensitive to the state of colliding atoms. Atomic magnetic moment or gJ-factor ratios were obtained from the measured Zeeman frequencies with the aid of the Breit-Rabi formula. Measurements were made at different values of magnetic field and an extrapolation was done to eliminate the effects of spin-exchange frequency shifts. The result is gJ (H)gJ (T)=1+(10.7±1.5)×10-9, in agreement with the theoretical predictions.

Original languageEnglish (US)
Pages (from-to)1543-1548
Number of pages6
JournalPhysical Review A
Issue number4
StatePublished - Jan 1 1974

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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