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Triply Differential Ionization Cross Sections of Atomic and Molecular Targets by Single Electron Impact

Abstract : We present numerically calculated triply differential cross sections for the simple ionization of two targets, atomic hydrogen and ammonia, in the First Born Approximation framework with one Coulomb wave describing the ejected electron. The partial wave series of the wavefunctions centered around the same origin were used and the intial state molecular wavefunction was derived using information provided by Gaussian03 software for ammonia. The theoretical results are calculated in the geometrical settings and kinematical conditions of previous experiments and are compared to published experimental and theoretical data. The results show good agreement with previous studies based on the same model for hydrogen. The general shape of the triply differential cross sections obtained for ammonia are in acceptable agreement with experimental data in the binary region but not in the recoil region where our simple framework fails to reconstruct the recoil peaks.
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https://hal.univ-lorraine.fr/hal-03603459
Contributor : François Dehez Connect in order to contact the contributor
Submitted on : Wednesday, March 9, 2022 - 7:16:22 PM
Last modification on : Thursday, March 10, 2022 - 11:47:34 AM

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Lena Mouawad, Ziad El Bitar, Ahmad Osman, Mohamad Khalil, Paul Antoine Hervieux, et al.. Triply Differential Ionization Cross Sections of Atomic and Molecular Targets by Single Electron Impact. 5th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA 2017), Jun 2017, Liège, Belgium. pp.01012, ⟨10.1051/epjconf/201817001012⟩. ⟨hal-03603459⟩

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