Abstract
The various exchange and core-polarisation contributions to the 2s-2p transition moments of the lithium and helium isoelectronic sequences have been analysed within the framework of the Z-expansion method. Very accurate results are obtained from the first-order theory, provided that exchange effects are included. The effects of core polarization are much less significant.
| Original language | English |
|---|---|
| Article number | 013 |
| Pages (from-to) | 1399-1405 |
| Number of pages | 7 |
| Journal | Journal of Physics B: Atomic and Molecular Physics |
| Volume | 10 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1977 |