Light-induced diffusive pulling and diffusion cross sections for K-He: experiment and theory

Hickman, A. P.; Mugglin, D.T.; Streater, A. D.

doi:10.1016/0030-4018(93)90396-m

Cited by 8 publications

(2 citation statements)

References 18 publications

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“…The results are reported in table 5. The method of calculation is the same as the calculation for He reported by Hickman et al (1993). The coupled-channel theory of Reid (1975) adapted by Hickman et al, provides the energy-dependent momentum transfer cross section…”

Section: Coupled-channel Calculation Of Cross Sections From Potential...mentioning

confidence: 99%

“…Combining these results with the ground-state cross sections and averaged σ/σ g reported by Mugglin et al (1992), we also report the absolute cross sections for the individual 4 2 P 1/2 and 4 2 P 3/2 levels. We also report calculated cross sections, based on available theoretical potential curves, using the theory of Reid (1975), as adapted for momentum transfer cross sections by Hickman et al (1993). Finally, we compare the experimental and theoretical results.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Diffusion cross sections for potassium and levels in rare gases

Yahyaei-Moayyed¹,

Hickman²,

Streater³

1996

J. Phys. B: At. Mol. Opt. Phys.

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We have used a light-induced drift (LID) experiment to determine ratios of cross sections for diffusion of potassium in the excited 4 2 P 3/2 , 4 2 P 1/2 and the ground 4 2 S 1/2 levels in five rare gases. The measured ratios are combined with the ground-state cross sections and statistically averaged excited cross sections, available from a previously reported light induced diffusive pulling experiment, to obtain the absolute cross sections for individual fine structure levels. We also report calculated cross sections based on available potential curves and a coupled-channel theory. Rough qualitative agreement is generally found between the absolute cross sections inferred from experiment and the theoretical values. The light-induced drift experiments, however, measure ratios of cross section differences that are highly sensitive to the potential curves. It is found that the available potential curves are not adequate for predicting these measured ratios.

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Section: Coupled-channel Calculation Of Cross Sections From Potential...mentioning

confidence: 99%