Fine Structure of the Hydrogen Atom. V

Sol Triebwasser; Edward S. Dayhoff; Willis E. Lamb, Jr

doi:10.1103/PhysRev.89.98

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Fine Structure of the Hydrogen Atom. V

Sol Triebwasser^*, Edward S. Dayhoff^†, and Willis E. Lamb, Jr.^‡

Radiation Laboratory, Columbia University, New York, New York

^*Present address: Watson Scientific Computing Laboratory, Columbia University, New York, New York.
^†Present address: National Bureau of Standards, Central Radio Propagation Laboratory, Microwave Standards Section, Washington, D. C.
^‡Present address: Department of Physics, Stanford University, Stanford, California.

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Phys. Rev. 89, 98 – Published 1 January, 1953

DOI: https://doi.org/10.1103/PhysRev.89.98

Abstract

Improvements in apparatus and techniques of measurement of the $2 {}^{2}S_{\frac{1}{2}} - 2 {}^{2}P_{\frac{1}{2}}$ level shifts in hydrogen and deuterium are described. The more accurate results are $S_{H} = 1057.77 \pm 0.10$ Mc/sec and $S_{D} = 1059.00 \pm 0.10$ Mc/sec. These values are compared with results of quantum electrodynamic calculations.

The shape of the resonance curves has been examined in great detail and compared with theory. Assuming the theoretical value of the radiative width and hyperfine splittings, excellent agreement is obtained. Further, if only the radiative width is assumed, measurements on hydrogen reported here confirm theoretical hyperfine splittings to within 0.28 Mc/sec. Since contributions of the hyperfine structure of the $2 S$ level have been measured to far greater accuracy, these results constitute a confirmation of the $2 P$ hyperfine splittings to an accuracy of 1.0 percent.

References (12)

Paper I, Phys. Rev. 79, 549 (1950) Paper II, Phys. Rev. 81, 222 (1951) Paper III, Phys. Rev. 85, 259 (1952) Paper IV, Phys. Rev. 86, 1014 (1952)
W. E. Lamb, Jr., and R. C. Retherford, Phys. Rev. 72, 241 (1947) 75, 1325 (1949) Part IV, 86, 1014 (1952) ibid.86Part II
Omitted endnote
E. S. Dayhoff, Rev. Sci. Instr. 22, 1025 (1951)
Omitted endnote
Dayhoff, Triebwasser, and Lamb, Phys. Rev. 89, 106 (1953)
Omitted endnote
Omitted endnote
reference 119, Sec. 98a
E. E. Salpeter, Phys. Rev. 89, 92 (1953) Phys. Rev.89Sec. 84 of Part IV Dr. Salpeter unpublished results
Omitted endnote
Omitted endnote

[c1] Paper I, Phys. Rev. 79, 549 (1950) Paper II, Phys. Rev. 81, 222 (1951) Paper III, Phys. Rev. 85, 259 (1952) Paper IV, Phys. Rev. 86, 1014 (1952)

[c2] W. E. Lamb, Jr., and R. C. Retherford, Phys. Rev. 72, 241 (1947) 75, 1325 (1949) Part IV, 86, 1014 (1952) ibid.86Part II

[c3] Omitted endnote

[c4] E. S. Dayhoff, Rev. Sci. Instr. 22, 1025 (1951)

[c5] Omitted endnote

[c6] Dayhoff, Triebwasser, and Lamb, Phys. Rev. 89, 106 (1953)

[c7] Omitted endnote

[c8] Omitted endnote

[c9] reference 119, Sec. 98a

[c10] E. E. Salpeter, Phys. Rev. 89, 92 (1953) Phys. Rev.89Sec. 84 of Part IV Dr. Salpeter unpublished results

[c11] Omitted endnote

[c12] Omitted endnote

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Fine Structure of the Hydrogen Atom. V

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