The symmetry-resolved excitation spectra for the C 1s → 2πuA1 and B1 resonances were measured for the first time. Ab initio calculations for the adiabatic excitation spectra I(A1) and I(B1) explain only partially the observed vibrational properties. The weighted sum of the adiabatic I(A1) and I(B1) spectra illustrate the essential role of the nonadiabatic coupling between A1 and B1.
|Journal||Physical review letters|
|Publication status||Published - 2002 Feb 25|
ASJC Scopus subject areas
- Physics and Astronomy(all)