TY  - JOUR
AU  - Pelimanni, Eetu
AU  - Doumy, G.
AU  - Ho, P. J.
AU  - Li, S.
AU  - Céolin, D.
AU  - Guillemin, R.
AU  - Ismail, I.
AU  - Koulentianos, Dimitrios
AU  - Marchenko, T.
AU  - Peng, D.
AU  - Püttner, R.
AU  - Simon, M.
AU  - Travnikova, O.
AU  - Velasquez, N.
AU  - Verma, A.
AU  - Walko, D. A.
AU  - Young, L.
AU  - Southworth, S. H.
TI  - Fluorescence-mediated postcollision interaction in x-ray photoionization of the Xe K edge
JO  - Physical review / A
VL  - 110
IS  - 2
SN  - 2469-9926
CY  - Woodbury, NY
PB  - Inst.
M1  - PUBDB-2024-06674
SP  - 023117
PY  - 2024
AB  - Postcollision interaction (PCI) in near-threshold photoionization of the 𝐾 shell of atomic Xe is investigated with hard-x-ray synchrotron radiation. Applying Auger electron spectroscopy, line-shape distortion is monitored in the 𝐾−𝐿<sub>2</sub>→𝐿<sub>2</sub>⁢𝑀<sub>4,5</sub>⁢𝑀<sub>4,5</sub> decay channel, where the initial 𝐾−𝐿<sub>2</sub> (𝐾⁢𝛼<sub>2</sub>) x-ray-emission step mediates the emission of the two continuum electrons. The 𝐾-edge result is compared to similar data obtained on direct 𝐿<sub>2</sub>⁢𝑀<sub>4,5</sub>⁢𝑀<sub>4,5</sub> decay at the 𝐿<sub>2</sub> edge without x-ray-emission. It is found that the evolution of the PCI shift with excess photon energy is very similar at both edges, but a subtle decrease in the PCI shift is observable at the 𝐾 edge due to the effect of the ultrafast x-ray emission step delaying the PCI energy exchange by a few attoseconds.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001302437200004
DO  - DOI:10.1103/PhysRevA.110.023117
UR  - https://bib-pubdb1.desy.de/record/617288
ER  -