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Pré-Publication, Document De Travail Année : 2006

Two-loop QED corrections in few-electron ions

Résumé

Results of a calculation valid to all orders in the nuclear-strength parameter Z\alpha are presented for the two-loop Lamb shift, notably for the two-loop self-energy correction, for the ground and first excited states of ions with the nuclear charge numbers Z=60-100. A detailed comparison of the all-order calculation with earlier investigations based on an expansion in the parameter Z\alpha is given. The calculation removes the largest theoretical uncertainty for the 2p_j-2s transition energies in heavy Li-like ions and is important for interpretation of experimental data.

Dates et versions

hal-00117639 , version 1 (03-12-2006)

Identifiants

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V. A. Yerokhin, P. Indelicato, V. M. Shabaev. Two-loop QED corrections in few-electron ions. 2006. ⟨hal-00117639⟩
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