Elastic scattering of positrons and electrons by argon

Journal Article · Sat Feb 28 23:00:00 EST 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.35.2051· OSTI ID:6595454

Nahar, S N; Wadehra, J M

Differential and integrated cross sections for the elastic scattering of low- and intermediate-energy (3--300 eV) positrons and electrons by argon atoms are calculated. Higher transport cross sections, representing moments of 1-(costheta)/sup n/, for these systems are also obtained for n = 1--4. Model potentials are used to represent the interactions between positrons or electrons and argon atoms. For each impact energy, the phase shifts of the lower partial waves are obtained exactly by numerical integration of the radial equation. The Born approximation is used to obtain the contribution of the higher partial waves to the scattering amplitude. The phase shifts of the seven lowest partial waves are tabulated for various impact energies of positrons and electrons.

• Research Organization: Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202
• OSTI ID: 6595454
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
BORN APPROXIMATION
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
FLUIDS
FUNCTIONS
GASES
NONMETALS
PARTIAL WAVES
PHASE SHIFT
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
POTENTIALS
RARE GASES
RESPONSE FUNCTIONS
SCATTERING
TOTAL CROSS SECTIONS