Bending-induced diminution of shape resonances in the core-level absorption region of hot CO2 and N2O
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We have measured the initial vibrational-state-specific, symmetryresolved ion-yield spectra of CO2 and N2O in the shape resonance regions above the K-shell ionization thresholds. For both molecules, significant diminution of the shape resonances by bending excitation in the initial electronic ground state is observed. The measured ion-yield spectra are well reproduced by calculations employing the Schwinger variational principle. The observed changes in the spectra are seen to be due to a shift of the resonances to lower energy and an initial increase in width with bending. IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
