Hyperfine structure of S states in Li and Be^+

Details Hyperfine structure of S states in Li and Be^+ Hyperfine structure of S states in Li and Be^+

2008-01-28

arxiv.org/abs/0801.4359v1

Phys. Rev. A 77, 020501(R) (2008)

Physics

Atomic Physics

4 pages, 2 tables

Scientific paper

10.1103/PhysRevA.77.020501

A large-scale configuration-interaction (CI) calculation is reported for the hyperfine splitting of the 2^2S and 3^2S states of ^7Li and ^9Be^+. The CI calculation based on the Dirac-Coulomb-Breit Hamiltonian is supplemented with a separate treatment of the QED, nuclear-size, nuclear-magnetization distribution, and recoil corrections. The nonrelativistic limit of the CI results is in excellent agreement with variational calculations. The theoretical values obtained for the hyperfine splitting are complete to the relative order of \alpha^2 and improve upon results of previous studies.

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