Cross sections and spin polarizations for e sup + scattering from cadmium

Journal Article · Thu Feb 28 23:00:00 EST 1991 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.43.2223· OSTI ID:6145283

Nahar, S N ^[1]

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1. Department of Astronomy, The Ohio State University, Columbus, Ohio 43210 (US)

Various scattering cross sections such as differential, integrated-elastic, momentum-transfer, and total cross sections, and the spin-polarization parameters for both the elastic and the total scatterings of electrons and positrons from cadmium atoms in the impact-energy range of 6.4--300 eV, have been calculated relativistically by solving the Dirac equation. For the pure elastic-scattering case, the projectile-target interaction is represented by a real model potential that includes the static potential (attractive), a parameter-free polarization potential (attractive) and an electron-exchange potential for the electrons scattering, and the static potential (repulsive) and a parameter-free polarization potential (attractive) different from that of electrons scattering for the positrons scattering from cadmium. For the total scattering, which includes both the elastic-scattering and the inelastic-scattering processes, the total interaction is represented by a complex potential by adding a model absorption potential as its imaginary part. It has been observed that the agreement of the calculated differential cross section (DCS) curves for the elastic scattering of electrons from cadmium is reasonable with the previously measured values of DCS while the agreement is good with the recently measured values of DCS.

• OSTI ID: 6145283
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 43:5; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CADMIUM
COLLISIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
EQUATIONS
INELASTIC SCATTERING
INFORMATION
METALS
NUMERICAL DATA
ORIENTATION
PARTIAL DIFFERENTIAL EQUATIONS
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
SCATTERING
SPIN ORIENTATION
THEORETICAL DATA
TOTAL CROSS SECTIONS
WAVE EQUATIONS