Discrete-basis-set calculation for e-N/sub 2/ scattering cross sections in the static-exchange approximation

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.17.160· OSTI ID:5162767

Fliflet, A W; Levin, D A; Ma, M; McKoy, V

Calculations are reported for low-energy e-N/sub 2/ scattering cross sections in the static-exchange approximation. Our approach involves solving the Lippman-Schwinger equation for the transition operator in a subspace of Gaussian functions. A new feature of the method is the analytical evaluation of matrix elements of the free-particle Green's function. Another development is the use of an analytical transformation to obtain single-center expansion coefficients for the scattering amplitude from our multicenter discrete-basis-set representation of the T matrix. We present results for the total elastic and rotational excitation cross sections, and the momentum-transfer cross section, for incident electron energies from 0.5 to 10 eV. Comparison is made with other theoretical results and experimental data.

• Research Organization: Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5162767
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 17:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCHANGE INTERACTIONS
EXCITATION
EXCITED STATES
FLUIDS
FUNCTIONS
GREEN FUNCTION
INTERACTIONS
MOLECULE COLLISIONS
NITROGEN
NONMETALS
ROTATIONAL STATES
SCATTERING