### Abstract

The x-ray-absorption cross section above the [Formula Presented] edges in xenon gas has been measured using synchrotron radiation. Multielectron excitation effects are investigated over a few hundred eV region from the Xe [Formula Presented] [Formula Presented] and [Formula Presented] edges and the contributions from the effects of shake-up and shake-off to the photoabsorption spectrum are elucidated. Several multielectron excitation features were detected and analyzed by the theoretical energy of the shake-up process. Previous observations of the [Formula Presented] and [Formula Presented] transitions have been confirmed. [Formula Presented] transitions are clearly identified in the present study. It is very difficult to detect the [Formula Presented] multielectron transition with the sensitivity of [Formula Presented] at the [Formula Presented] edge jump. The [Formula Presented] edge was distinguished using the first derivative of the absorption curve. A new transition is found between [Formula Presented] and [Formula Presented] transitions and identified as a three-electron transition [Formula Presented] Moreover, the difference in the behavior of the multielectron excitation as a function of x-ray energy among the [Formula Presented] and [Formula Presented] or [Formula Presented] edges is confirmed and investigated.

Original language | English |
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Pages (from-to) | 873-878 |

Number of pages | 6 |

Journal | Physical Review A - Atomic, Molecular, and Optical Physics |

Volume | 57 |

Issue number | 2 |

DOIs | |

Publication status | Published - Jan 1 1998 |

### ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics

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## Cite this

*Physical Review A - Atomic, Molecular, and Optical Physics*,

*57*(2), 873-878. https://doi.org/10.1103/PhysRevA.57.873