Generalized oscillator strength for Na 3s-3p transition

Details Generalized oscillator strength for Na 3s-3p transition Generalized oscillator strength for Na 3s-3p transition

2000-03-13

arxiv.org/abs/physics/0003025v1

Phys Rev A Rapid Communications, vol 61, published 3 Feb, 2000

Physics

Atomic Physics

11 pages, 2figures

Scientific paper

10.1103/PhysRevA.61.030703

Generalized oscillator strengths (GOS's) for the Na $3s -3p$ transition have been investigated using the spin-polarized technique of the random phase approximation with exchange (RPAE) and the first Born approximation (FBA), focussing our attention on the position of the minimum. Intershell correlations are found to influence the position of the minimum significantly, but hardly that of the maximum. The RPAE calculation predicts for the first time the positions of the minimum and maximum at momentum transfer, $K$ values of 1.258 a.u. and 1.61 a.u., respectively. The former value is within the range of values extracted from experimental measurements, $K=1.0-1.67$ a.u.. We recommend careful experimental search for the minimum around the predicted value for confirmation.

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