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Application of the Schwinger multichannel formulation to electron-impact excitation of the b 3Sigma(+) state of CO
- Source :
- Physical Review A - Atomic, Molecular, and Optical Physics, 3rd Series. 41
- Publication Year :
- 1990
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1990.
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Abstract
- 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.
- Subjects :
- Atomic And Molecular Physics
Subjects
Details
- Language :
- English
- ISSN :
- 05562791
- Volume :
- 41
- Database :
- NASA Technical Reports
- Journal :
- Physical Review A - Atomic, Molecular, and Optical Physics, 3rd Series
- Notes :
- NCC2-492, , NSF PHY-87-11805
- Publication Type :
- Report
- Accession number :
- edsnas.19900036173
- Document Type :
- Report