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  • Kinematically complete study of low-energy electron-impact ionization of argon: Internormalized cross sections in three-dimensional kinematics

    Author(s)
    Ren, Xueguang
    Amami, Sadek
    Zatsarinny, Oleg
    Pflueger, Thomas
    Weyland, Marvin
    Dorn, Alexander
    Madison, Don
    Bartschat, Klaus
    Griffith University Author(s)
    Bartschat, Klaus
    Year published
    2016
    Metadata
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    Abstract
    As a further test of advanced theoretical methods to describe electron-impact single-ionization processes in complex atomic targets, we extended our recent work on Ne(2p) ionization [X. Ren, S. Amami, O. Zatsarinny, T. Pflüger, M. Weyland, W. Y. Baek, H. Rabus, K. Bartschat, D. Madison, and A. Dorn, Phys. Rev. A 91, 032707 (2015)PLRAAN1050-294710.1103/PhysRevA.91.032707] to Ar(3p) ionization at the relatively low incident energy of E0=66 eV. The experimental data were obtained with a reaction microscope, which can cover nearly the entire 4π solid angle for the secondary electron emission. We present experimental data for ...
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    As a further test of advanced theoretical methods to describe electron-impact single-ionization processes in complex atomic targets, we extended our recent work on Ne(2p) ionization [X. Ren, S. Amami, O. Zatsarinny, T. Pflüger, M. Weyland, W. Y. Baek, H. Rabus, K. Bartschat, D. Madison, and A. Dorn, Phys. Rev. A 91, 032707 (2015)PLRAAN1050-294710.1103/PhysRevA.91.032707] to Ar(3p) ionization at the relatively low incident energy of E0=66 eV. The experimental data were obtained with a reaction microscope, which can cover nearly the entire 4π solid angle for the secondary electron emission. We present experimental data for detection angles of 10, 15, and 20 for the faster of the two outgoing electrons as a function of the detection angle of the secondary electron with energies of 3, 5, and 10 eV, respectively. Comparison with theoretical predictions from a B-spline R-matrix (BSR) with pseudostates approach and a three-body distorted-wave (3DW) approach, for detection of the secondary electron in three orthogonal planes as well as the entire solid angle, shows overall satisfactory agreement between experiment and the BSR results, whereas the 3DW approach faces difficulties in predicting some of the details of the angular distributions. These findings are different from our earlier work on Ne(2p), where both the BSR and 3DW approaches yielded comparable levels of agreement with the experimental data.
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    Journal Title
    Physical Review A
    Volume
    93
    Issue
    6
    DOI
    https://doi.org/10.1103/PhysRevA.93.062704
    Subject
    Atomic and molecular physics
    Science & Technology
    Physical Sciences
    Optics
    Physics, Atomic, Molecular & Chemical
    Physics
    Publication URI
    http://hdl.handle.net/10072/409278
    Collection
    • Journal articles

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