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The influence of a strong atomic polarizability on photodetachment processes is isolated. In a model study of K^- photodetachment near the 4p₁₂, 4p₃₂ levels of K, the polarizability (₄600a₀^3) is shown to cause a striking energy dependence of the parameters which determine the cross section. This study extends the effective range theory of O'Malley, Spruch, and Rosenberg to a broader energy range and to multichannel systems. An appendix provides a derivation of the polarization potential (and correction terms) starting from the electron-atom close-coupling equations, showing some new features.
Watanabe et al. (Tue,) studied this question.
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