Abstract
Spectroscopic signatures of Jahn-Teller (JT) coupling in then p x,y 2 E′ Rydberg series of H3 and D3 are analyzed within a simple multi-channel-quantum-defect-type model. The JT coupling constant has been inferred from existing ab initio calculations of the potential-energy surfaces of low Rydberg states of H3. The model predicts pronounced resonant perturbations in Rydberg members with intermediaten (n=5–7) as well as strong JT-induced autoionization in absorption and ion-yield spectra from vibrationally excited initial levels. The JT-induced effects are shown to exhibit a characteristic dependence on the vibrational angular momentum of the bending mode in the initial state.
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Staib, A., Domcke, W. Analysis of the Jahn-Teller effect in then p 2 E′ Rydberg series of H3 and D3 . Z Phys D - Atoms, Molecules and Clusters 16, 275–282 (1990). https://doi.org/10.1007/BF01437531
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DOI: https://doi.org/10.1007/BF01437531