Relativistic and QED corrections to the g factor of Li-like ions
Abstract
Calculations of various corrections to the g factor of Li-like ions are presented, which result in a significant improvement of the theoretical accuracy in the region Z = 6-92. The configuration-interaction Dirac-Fock method is employed for the evaluation of the interelectronic-interaction correction of order 1/Z2 and higher. This correction is combined with the 1/Z interelectronic-interaction term derived within a rigorous QED approach. The one-electron QED corrections of first in α are calculated to all orders in the parameter α Z. The screening of QED corrections is taken into account to the leading orders in α Z and 1/Z.
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