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physics.atom-ph2006★ 20 cited
Third-order many-body perturbation theory calculations for the beryllium and magnesium isoelectronic sequences
H. C. Ho, W. R. Johnson, S. A. Blundell +1
Relativistic third-order MBPT is applied to obtain energies of ions with two valence electrons in the no virtual-pair approximation (NVPA). A total of 302 third-order Goldstone dia…
physics.atom-ph2004
Off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 levels in 133Cs
W. R. Johnson, H. C. Ho, Carol E. Tanner +1
The off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 states in 133Cs is evaluated in third-order MBPT giving 37.3 Hz and 48.3 Hz, respectively, for second-order energ…