Triply Differential Ionization Cross Sections of atomic and molecular targets by single electron impact

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 th...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 170; p. 1012
Main Authors Mouawad, Lena, Bitar, Ziad El, Osman, Ahmad, Khalil, Mohamad, Hervieux, Paul Antoine, Cappello, Claude Dal
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Ammonia
Born approximation
Ejection
Electron impact
Ionization
Ionization cross sections
Mathematical models
Molecular chains
Recoil
Wave functions
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Summary: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.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201817001012