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Abbreviated Journal Title

Phys. Rev. A

Keywords

Abinitio Calculation; Cross-Sections; Argon Atoms; Polarizabilities; Length; Xenon; Optics; Physics, Atomic; Molecular & Chemical

Abstract

The multiconfiguration Hartree-Fock method for continuum wave functions has been used to perform calculations of elastic scattering of electrons from the open-shell sulfur atom at low energies. The electron correlation and polarization of the sulfur atom by the scattered electron, which are very important in this calculation, have been taken into account very accurately ab initio through the configuration-interaction procedure by optimizing both bound and continuum orbitals simultaneously at each kinetic energy of the scattered electron. The scattering lengths, phase shifts, and differential, total and momentum-transfer cross sections for electrons elastically scattered from sulfur atoms are calculated for the impact-energy range from 0 to 27.2 eV. The wave functions computed exactly at zero energy are used to compute the scattering length. The present results are compared with other available theoretical results.

Journal Title

Physical Review A

Volume

56

Issue/Number

3

Publication Date

1-1-1997

Document Type

Article

Language

English

First Page

1897

Last Page

1903

WOS Identifier

WOS:A1997XV84000031

ISSN

1050-2947

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