Evidence of single-photon two-site core double ionization of C 2H2 molecules

P. Lablanquie, T. P. Grozdanov, M. Aitnik, S. Carniato, P. Selles, L. Andric, J. Palaudoux, F. Penent, H. Iwayama, E. Shigemasa, Y. Hikosaka, K. Soejima, M. Nakano, I. H. Suzuki, K. Ito

研究成果: Article査読

73 被引用数 (Scopus)

抄録

We observe the formation in a single-photon transition of two core holes, each at a different carbon atom of the C2H2 molecule. At a photon energy of 770.5 eV, the probability of this 2-site core double ionization amounts to 1.6±0.4% of the 1-site core double ionization. A simple theoretical model based on the knockout mechanism gives reasonable agreement with experiment. Spectroscopy and Auger decays of the associated double core hole states are also investigated.

本文言語English
論文番号193004
ジャーナルPhysical review letters
107
19
DOI
出版ステータスPublished - 2011 11月 4

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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