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O(m alpha^7 ln(alpha)^2) corrections to positronium energy levels

Kirill Melnikov·Alexander Yelkhovsky
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Abstract

We present a calculation of the O(m alpha^7 ln(alpha)^2) corrections to positronium energy levels. The result is used to estimate the current uncertainty in theoretical predictions of the positronium spectrum.

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Kirill Melnikov, Alexander Yelkhovsky. 1999-04-11. O(m alpha^7 ln(alpha)^2) corrections to positronium energy levels. https://doi.org/10.1016/s0370-2693(99)00566-3

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