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 language | English (US) |
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Pages (from-to) | 160-169 |
Number of pages | 10 |
Journal | Physical Review A |
Volume | 17 |
Issue number | 1 |
DOIs | |
State | Published - 1978 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics