Fixed-Molecule 1{ital s{sigma}}{sub {ital g},{ital u}} Photoelectron Angular Distributions as a Probe of {ital {sigma}}{sub {ital g}}{sup {asterisk}} and {ital {sigma}}{sub {ital u}}-
- Photon Factory, National Laboratory for High Energy Physics, 1-1 Oho, Tsukuba-shi, Ibaraki 305 (Japan)
- Institute of Physics, St.Petersburg University, St.Petersburg, 198904 (Russian Federation)
Angular distributions of 1s{sigma}{sub g,u} photoelectrons from CO{sub 2 } molecules, oriented parallel to the electric vector of incident light, have been measured. The angular distribution patters at {sigma}{sup {asterisk}}{sub g} and {sigma}{sup {asterisk}}{sub u} shape resonances are significantly different from those expected in the virtual molecular orbitals concept. The analyses of the patterns have made it clear that the mixing of outgoing photoelectron partial waves and the interference between them are responsible for the observed patterns, unlike N{sub 2} photoionization. Calculations based on a quasiatomic model have reproduced the observed patterns fairly well. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 549683
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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