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Low-energy differential scattering of electrons and positrons from noble gases

Journal Article · · Physical Review A; (United States)
;  [1]
  1. Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202 (United States)
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Calculations of cross sections for electron ([ital e][sup [minus]]) and positron ([ital e][sup +]) scattering from ground-state He, Ne, Ar, Kr, and Xe at projectile energies below the lowest inelastic thresholds are presented. The main focus in the present work is on the differential cross sections, since angular distributions depend sensitively on the choice of interaction potentials used in the calculations. A part of the interaction potential used in the calculations includes a parameter-free correlation-polarization potential which is (a) based on physical ideas of what a correlation-polarization potential should be, (b) different for various target gases, and (c) distinct for electron and positron scattering. The present calculations of differential cross sections predict the locations of the principal maxima and minima with good accuracy and the shapes of the calculated differential cross-section curves compare quite well with available experimental cross sections.

OSTI ID:
6804254
Journal Information:
Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:6; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
664500 -- Special Atoms & Molecules-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
COLLISIONS
CORRELATIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY
ENERGY DEPENDENCE
ENERGY LEVELS
FLUIDS
GASES
GROUND STATES
HELIUM
INELASTIC SCATTERING
KRYPTON
NEON
NONMETALS
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
POTENTIAL SCATTERING
POTENTIALS
PROJECTILES
RARE GASES
SCATTERING
THRESHOLD ENERGY
XENON