Journal
PHYSICAL REVIEW A
Volume 80, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.063425
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Funding
- European Community [PIIF-GA-2008-219224]
- Deutsche Forschungsgemeinschaft's (DFG) [EH 187/16-1]
- Bundesministerium fur Bildung und Forschung (BMBF) [05 ES3XBA/5]
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Angular distributions of the CO+(A (2)Pi) photoelectrons and of the CO+(A (2)Pi -> X (2)Sigma(+)) fluorescence are computed in the vicinity of the 1s(-1)pi* resonant excitation of the C*O molecule. In the calculations, lifetime vibrational interference and the direct transition amplitude for population of the A (2)Pi(v') states were taken into account ab initio. The weak direct photoionization channel induces broad exciting-photon energy range dispersions of the angular distribution parameters beta(e)(A)(omega) and beta 2(A)(X)(omega), and the nuclear vibrational motion causes variations of the computed parameters across the positions of the C*O(v(r)) vibronic states. Present calculations are in good agreement with available vibrationally and angularly resolved resonant Auger spectra. Theoretical beta 2(A)(X)(omega) parameters are in agreement with the experimental results from the polarization analysis of the CO+(A-X) fluorescence induced by linearly polarized synchrotron radiation.
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