期刊
CANADIAN JOURNAL OF PHYSICS
卷 80, 期 11, 页码 1195-1212出版社
NATL RESEARCH COUNCIL CANADA
DOI: 10.1139/P02-111
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The long-term goal of this work is to determine the fine-structure constant alpha from a comparison between theory and experiment for the fine-structure splittings of the helium 1s2p P-3(J) states. All known terms of order alpha(5) a.u. (alpha(7) mc(2)) arising from the electron-electron interaction, and recoil corrections of order alpha(4) mu/M a.u. are evaluated and added to previous tabulation. The predicted energy splittings are nu(0,1) = 29 616.946 42(18) MHz and nu(1,2) = 2291.154 62(31) MHz. Although the computational uncertainty is much less than +/-1 kHz, there is an unexplained discrepancy between theory and experiment of 19.4(1.4) kHz for nu(1,2).
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