QED calculation of the 2p1-2-2s and 2p3-2-2s transition energies and the ground-state hyperfine splitting in lithiumlike scandium - Physics Atomic PhysicsReportar como inadecuado




QED calculation of the 2p1-2-2s and 2p3-2-2s transition energies and the ground-state hyperfine splitting in lithiumlike scandium - Physics Atomic Physics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We present the most accurate up-to-date theoretical values of the{2p {1-2}}-{2s} and {2p {3-2}}-{2s} transition energies and the ground-statehyperfine splitting in ${ m Sc}^{18+}$. All two- and three-electroncontributions to the energy values up to the two-photon level are treated inthe framework of bound-state QED without $\aZ$-expansion. The interelectronicinteraction beyond the two-photon level is taken into account by means of thelarge-scale configuration-interaction Dirac-Fock-Sturm CI-DFS method. Therelativistic recoil correction is calculated with many-electron wave functionsin order to take into account the electron-correlation effect. The accuracy ofthe transition energy values is improved by a factor of five compared to theprevious calculations. The CI-DFS calculation of interelectronic-interactioneffects and the evaluation of the QED correction in an effective screeningpotential provide significant improvement for the $2s$ hyperfine splitting. Theresults obtained are in a good agreement with recently published experimentaldata.



Autor: Y. S. Kozhedub, D. A. Glazov, A. N. Artemyev, N. S. Oreshkina, V. M. Shabaev, I. I. Tupitsyn, A. V. Volotka, G. Plunien

Fuente: https://arxiv.org/







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