Differential cross sections for the elastic scattering of electrons by N2 molecules are calculated in the first Born approximation. Configuration interaction wavefunctions constructed from a large basis set of Slater-type functions are used to describe the target. These wavefunctions recover up to 83% of the empirical valence correlation energy, predict accurate quadrupole moments, and cross sections apparently converged to 5% with respect to one-particle basis set effects and valence correlation. However there is a persistent discrepancy between the calculations and recent 29 keV experiments. Further experimental work is needed to determine whether the experimental data contain systematic errors.
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JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS