Theoretical Correlation of Intensity Features of Selective Adsorption with Fourier Components of the Atom-Surface Potential

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Abstract
Rules governing intensity features of selective adsorption data are derived. Minima or mixed maxima-minima in the specular intensity are predicted for resonant channels that strongly couple to the specular, and maxima for resonance states that couple only indirectly to the specular. These rules, which facilitate the identification of resonance positions and intensity features, are corroborated by available experimental data. Resonance shifts are also calculated. The characteristic asymmetric splitting of overlapping resonances is accounted for.