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Internal Inelastic Scattering Satellite Probed by Molecular-Frame Photoelectron Angular Distributions from CO2

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(2σg)→ 4σ*u 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(2σg) orbital along the molecular axis and collides with an O lone-pair electron in the highest occupied molecular orbital 1πg. Then one of the colliding electrons is trapped to the lowest unoccupied molecular orbital 2π*u, while the other is emitted as a satellite photoelectron of σg symmetry, losing the information of the original photoelectron emission direction and parity.
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https://hal-cea.archives-ouvertes.fr/cea-00306462
Contributor : Chantal Brassy <>
Submitted on : Friday, July 25, 2008 - 6:48:47 PM
Last modification on : Thursday, September 10, 2020 - 2:46:55 PM

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  • HAL Id : cea-00306462, version 1

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X.-J. Liu, H. Fukuzawa, T. Teranishi, A. de Fanis, M. Takahashi, et al.. Internal Inelastic Scattering Satellite Probed by Molecular-Frame Photoelectron Angular Distributions from CO2. Physical Review Letters, American Physical Society, 2008, 101, pp.023001. ⟨cea-00306462⟩

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