Effects of dynamical screening on single ionization of sodium by electron impact in doubly symmetric geometry

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.032715· OSTI ID:21541293

Xiangfu, Jia; Shiyan, Sun ^[1]

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1. School of Physics and Information Engineering, Center for Molecules Research, Shanxi Normal University, Linfen, Shanxi 041004 (China)

A dynamically screened three-Coulomb-wave model (DS3C) is applied to study the single ionization of sodium by electron impact. Triply differential cross sections (TDCS) are calculated in doubly symmetric geometry at excess energies of 6, 10, 15, 20, 30, 40, 50, and 60 eV. Comparisons are made among DS3C and the latest experimental data and such theoretical predictions as the three-Coulomb-wave function approach, the distorted-wave Born approximation, and the nonperturbative convergent close-coupling method. The angular distribution and relative magnitude of the present TDCS are found to qualitatively reproduce the reported experimental data. It is shown that dynamically screened effects are important in the geometries studied here.

• OSTI ID: 21541293
• Journal Information: Physical Review. A, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevA.83.032715; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
COMPARATIVE EVALUATIONS
COUPLING
DIFFERENTIAL CROSS SECTIONS
DWBA
ELECTRONS
EV RANGE
EXPERIMENTAL DATA
IONIZATION
SODIUM
SYMMETRY
WAVE FUNCTIONS
ALKALI METALS
APPROXIMATIONS
BORN APPROXIMATION
CALCULATION METHODS
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVALUATION
FERMIONS
FUNCTIONS
INFORMATION
LEPTONS
METALS
NUMERICAL DATA