Elastic scattering of electrons and positrons from rubidium. [Rb]

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.5693· OSTI ID:5924956

Gien, T T ^[1]

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1. Department of Physics, Memorial University of Newfoundland, St. John's, Newfoundland, A1B3X7 (Canada)

The elastic scatterings of electrons and positrons from rubidium are calculated at intermediate energies in the Born, Glauber, modified Glauber (MG), and eikonal-Born-series approximations. The results of differential cross sections (DCS) for elastic scattering obtained within these various methods of approximation are presented with discussion. The modified Glauber results predict the existence of structures for the DCS, similar to those of scattering from potassium and sodium. Furthermore, the structures in this case persist even at a scattering energy as high as 500 eV. The DCS in the modified Glauber approximation at small scattering angles are used to estimate the effective'' total cross sections for positron and electron scatterings from rubidium. The effective MG total cross sections are found to be in better agreement with experimental data.

• OSTI ID: 5924956
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 44:9; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
AMPLITUDES
ATOM COLLISIONS
BORN APPROXIMATION
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
EIKONAL APPROXIMATION
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
METALS
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
RUBIDIUM
SCATTERING
SCATTERING AMPLITUDES
TOTAL CROSS SECTIONS