Three-body coupling for electron impact ionization of helium in the perpendicular plane geometry |
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Authors: | Shiyan Sun Xiangyang Miao Junfeng Zhang |
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Affiliation: | Institute of Modern Physics, School of Physics and Information Engineering, Shanxi Normal University, Linfen, Shanxi 041004, PR China |
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Abstract: | Dynamically screened three-Coulomb-wave (DS3C) model is applied to study single ionization of helium by 102 eV electron impact. Fully differential cross sections (FDCS) are calculated at different scattering angle of (8°, 10°, 15°, 20°) in the perpendicular plane asymmetric geometry. The results are compared with experimental data and theoretical predictions from a three-Coulomb wave function (3C) approach, convergent close-coupling calculation (CCC), as well as second-order distorted-wave Born method (DWB2). It is shown that three-body coupling effects are important for the perpendicular plane geometry. |
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Keywords: | 34.80.Dp |
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