Iterative approach to the Schwinger variational principle for electron-molecule collisions

Journal Article · Fri Aug 01 04:00:00 EDT 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.22.421· OSTI ID:5174020

Lucchese, R R; Watson, D K; McKoy, V

We present an iterative approach which uses the Schwinger variational principle to solve the Lippmann-Schwinger equation for electron-molecule scattering. This method combines the use of discrete basis functions to describe the effects of the noncentral molecular potential with an iterative procedure which provides systematic convergence of the scattering solutions. Results for electron-H/sub 2/ scattering in the static-exchange approximation show that the method converges rapidly and gives very accurate results.

• Research Organization: Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5174020
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CRYOGENIC FLUIDS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
EQUATIONS
FLUIDS
HYDROGEN
INTEGRAL EQUATIONS
ITERATIVE METHODS
LIPPMANN-SCHWINGER EQUATION
MOLECULE COLLISIONS
NONMETALS
SCHWINGER VARIATIONAL METHOD
VARIATIONAL METHODS