Journal Article

PUBDB-2024-07324

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Molecule effect in inner shell sequential doubleionization

Zhang, S. ; Zhang, M.Extern* ; Inhester, L. (Corresponding author)CFEL*Extern*XFEL.EU*DESY* ; Ueda, K.Extern* ; Lucchesse, R. ; Zhao, L. ; Zhang, S. ; Dong, B. ; Hao, Y. ; Li, Z.

2025
American Institute of Physics Melville, NY

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Please use a persistent id in citations: doi:10.1063/5.0265297  doi:10.3204/PUBDB-2024-07324

Abstract: We present a theoretical framework for the angular distribution of the two emitted photoelectrons in sequential inner shell two-photon double ionization (TPDI) of uniformly distributed molecules. As an example, we numerically calculated the sequential double ionization of the 4d shells of the iodine atom in CH$_3$I with a length and velocity gauge and obtained the corresponding angular anisotropy parameters. For comparison, we also compute the anisotropy parameters for atomic xenon. The anisotropy parameter for the second ionization of CH$_3$I is strongly influenced by the molecular structure, providing a sensitive probe for photoionization dynamics in polyatomic systems. This study provides a computational code for simulating sequential TPDI processes, enabling one to computationally study the molecular effects in the angular distribution for sequential inner-shell double ionization.

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Contributing Institute(s):

1. CFEL-Theory (FS-CFEL-3)
2. FS-CFEL-3 (CFEL-DESYT)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; IF >= 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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