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Internal inelastic scattering satellite probed by molecular-frame photoelectron angular distributions from CO2.
- Source :
-
Physical review letters [Phys Rev Lett] 2008 Jul 11; Vol. 101 (2), pp. 023001. Date of Electronic Publication: 2008 Jul 10. - Publication Year :
- 2008
-
Abstract
- The molecular-frame photoelectron angular distribution (MFPAD) of the satellite accompanying the C 1s photoline of the CO2 molecule has been measured at the C 1s(2sigmag)-->4sigmau* shape resonance, using electron-ion multicoincidence momentum spectroscopy. The observed MFPAD indicates that the conjugate satellite is excited by internal inelastic scattering. In this scenario, a photoelectron is ejected from the C 1s(2sigmag) orbital along the molecular axis and collides with an O lone-pair electron in the highest occupied molecular orbital 1pig. Then one of the colliding electrons is trapped to the lowest unoccupied molecular orbital 2piu*, while the other is emitted as a satellite photoelectron of sigmag symmetry, losing the information of the original photoelectron emission direction and parity.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 101
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 18764178
- Full Text :
- https://doi.org/10.1103/PhysRevLett.101.023001