Improved theory of helium fine structure

Abstract

Improved theoretical predictions for the fine-structure splitting of $2^3{P}_J$ levels in helium are obtained by the calculation of contributions of order ${\alpha }^{5}Ry$. New results for transition frequencies, ${\nu }_{01}=29616943.01(17)$ kHz and ${\nu }_{12}=2291161.13(30)$ kHz disagree significantly with the experimental values, indicating an outstanding problem in bound state QED.

4 pages

References in corpus (1)

• Nonrelativistic QED approach to the Lamb shift

Cited by in corpus (6)

• ${\alpha }^4$ Ry corrections to singlet states of helium
• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
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• Helium 2 3S - 2 1S metrology at 1557 nm
• Detecting Extra Dimension by Helium-like Ions