Precision measurement of the hyperfine structure and gJ factor of atomic nitrogen 14

J. M. Hirsch, G. H. Zimmerman, Daniel John Larson, N. F. Ramsey

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The dipolar and quadrupolar hyperfine coupling constants, A and B, respectively, and the atomic gJ factor have been measured for the S324 ground state of atomic nitrogen 14. An atomic hydrogen maser oscillating at the ΔMF=-1 transition in a magnetic field ranging from 0.008 to 8 G was used as a detector of transitions in both hydrogen and nitrogen. The magnetic field was calibrated by the hydrogen Zeeman transition frequency. Values of the constants were found to be A=10450 929.12(10) Hz, B=1.27(10) Hz, and gJ=2.002 134 652(64). These results are compared to current theoretical results and other experimental measurements.

Original languageEnglish (US)
Pages (from-to)484-487
Number of pages4
JournalPhysical Review A
Issue number2
Publication statusPublished - Jan 1 1977


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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