Abstract
Oscillator strengths are calculated for transitions between the various terms of 2p33p and 2p33s of oxygen i. Term energies for the two configurations are calculated with the inclusion of the L(L+1) correction of Trees and with configuration interaction. The configurations included with 2p33s are 2p34s and 2s2p5 while 2p34p is included with 2p33p. It is shown that the L(L+1) correction should be assigned to the parent ion. Configuration interaction is included in the calculation of σ2 as well as in the energies. The radial wave functions used in the calculation of σ2 are Hartree wave functions without exchange.

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