Inclusion of electron correlation for the target wave function in low-energy e-+N2 scattering

The interaction of a scattering electron with a correlated but ''frozen'' target may be called the correlated static-exchange interaction. There are two prior investigations [J.R. Rumble, W.J. Stevens, and D. Truhlar, J. Phys. B 17, 3151 (1984); C Weatherford, F.B. Brown, and A. Temkin, Phys. Rev. A 35, 4561 (1987)] on scattering off the correlated static-exchange potential. Both of these investigations concentrated on e-+N2 scattering, and both have found that the correlated static-exchange potential is less attractive than the static-exchange potential. We will show, however, that the correlated static-exchange potential is more attractive than the static-exchange one---at least for e-+N2 scattering in 2Πg symmetry. The two prior investigations were misled by an improper degree of correlation and by an improper treatment of the exchange