{ital Ab initio} calculation for low-energy elastic scattering of electrons from sulfur atoms

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.56.1897· OSTI ID:538499

Saha, H P; Lin, D ^[1]

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1. Department of Physics, University of Central Florida, Orlando, Florida 32816 (United States)

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 {ital 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. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538499
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 56; ISSN PLRAAN; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CONFIGURATION INTERACTION
ELASTIC SCATTERING
ELECTRON CORRELATION
ELECTRON-ATOM COLLISIONS
HARTREE-FOCK METHOD
POLARIZATION
SULFUR
WAVE FUNCTIONS