Physics
Scientific paper
Jan 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrva..41..186w&link_type=abstract
Physical Review A - Atomic, Molecular, and Optical Physics, 3rd Series (ISSN 0556-2791), vol. 41, Jan. 1, 1990, p. 186-197.
Physics
13
Carbon Monoxide, Electron Energy, Electron Impact, Molecular Excitation, Rydberg Series, Electron Beams, Electron Scattering, Inelastic Scattering, Scattering Cross Sections
Scientific paper
The Chi 1Sigma - b 3Sigma(+) transition of CO is described using the Schwinger multichannel method in the two-state approximation, in an energy range from threshold to 20 eV. The resonance structure is analyzed by performing a partial-wave decomposition and the resonance positions are established based on the typical discontinuous behavior in the K-matrix elements as well as the pi radian change in the partial-wave eigenphases. The resonance behavior is related to the concept of core-excited resonances and the 'grandparent' model of resonances. The results are related to the formation of the negative ion by carrying out bound-state calculations on the (5 sigma)(3 s sigma)-squared core-excited Rydberg state of CO(-), and the position is found to agree well with the low-energy resonance positions.
Huo Winifred M.
Weatherford Charles A.
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