[ital Ab] [ital initio] calculation of scattering length and cross section at very low energies for electron-argon scattering

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.273· OSTI ID:6830782

Saha, H P ^[1]

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

The scattering length for electron-argon scattering is calculated very accurately by an [ital ab] [ital initio] method with wave functions computed exactly at zero energy. The multiconfiguration Hartree-Fock method, which takes into account the effects of target polarization and electron correlation through the configuration-interaction procedure, is used for the calculation. The differential, total, and momentum-transfer cross sections are also calculated for very low energies ranging from 0--1 eV. The present result for the scattering length is found to be in excellent agreement with the experimental results of Buckman and Lohmann [J. Phys. B 19, 2547 (1986)] and Haddad and O'Malley [Aust. J. Phys. 35, 35 (1982)].

• OSTI ID: 6830782
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
CALCULATION METHODS
COLLISIONS
CORRELATIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DIMENSIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON CORRELATION
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY DEPENDENCE
ENERGY RANGE
EV RANGE
FLUIDS
GASES
HARTREE-FOCK METHOD
LENGTH
MILLI EV RANGE
MOMENTUM TRANSFER
NONMETALS
POLARIZATION
RARE GASES
SCATTERING
SCATTERING LENGTHS
TOTAL CROSS SECTIONS