Discrete-basis-set calculation for e-N2 scattering cross sections in the static-exchange approximation

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

Research output: Contribution to journalArticlepeer-review

Abstract

Calculations are reported for low-energy e-N2 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.

Original languageEnglish (US)
Pages (from-to)160-169
Number of pages10
JournalPhysical Review A
Volume17
Issue number1
DOIs
StatePublished - 1978
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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