On the LS coupling along the boron sequence.

Details On the LS coupling along the boron sequence. On the LS coupling along the boron sequence.

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pobeo..50...27b&link_type=abstract

Publications de l'Observatoire Astronomique de Beograd, No. 50, p. 27 - 30

Astronomy and Astrophysics

Astronomy

Atomic Processes: Boron

Scientific paper

LS or Russell-Saunders coupling is dominant for many transitions in the spectra of light elements. The spin-orbit interaction in atomic Hamiltonian becomes more important in comparison to the electrostatic separation between levels of the same principal quantum number n but different orbital angular moments. Electrostatic separation increases as Z while the spin-orbit interaction grows as Z4·α2 where α is fine structure constant, Z is nuclear charge, so the LS-coupling approximation is expected from lower to higher elements of an isoelectronic sequence for nl-nl' transitions. The aim of this paper is to test the validity of experimental data for the LS-coupling approproximation in N III and O IV ions (3s-3p and 3p-3d transitions) with the theory and experimental data in Glenzer et al. (1994).

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