Internal inelastic scattering satellite probed by molecular-frame photoelectron angular distributions from CO2

X. J. Liu, H. Fukuzawa, T. Teranishi, A. De Fanis, M. Takahashi, H. Yoshida, A. Cassimi, A. Czasch, L. Schmidt, R. Dörner, I. Koyano, N. Saito, K. Ueda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

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)→4σu* 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 2πu*, while the other is emitted as a satellite photoelectron of σg symmetry, losing the information of the original photoelectron emission direction and parity.

Original languageEnglish
Article number023001
JournalPhysical review letters
Volume101
Issue number2
DOIs
Publication statusPublished - 2008 Jul 10

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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