Evaluation of the two-photon exchange diagrams for the (1s)2 2p3/2 electron configuration in Li-like ions
A. N. Artemyev, V. M. Shabaev, M. M. Sysak, V. A. Yerokhin, T. Beier, G. Plunien, G. Soff
Abstract
We present ab initio calculations of the complete gauge-invariant set of two-photon exchange graphs for the (1s)2 2p3/2 electron configuration in Li-like ions. These calculations are an important step towards the precise theoretical determination of the 2p3/2-2s transition energy in the framework of QED.
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