Differential elastic electron scattering cross sections for N 2 from 0 to 30 eV

We extend our recent work (Phys. Rev. A 16, 1423 (1977)) on total elastic electron-scattering cross sections for N2 to include differential cross sections from 0 to 30 eV. Extensive comparisons with the results of experiments and other theories are made. The overall agreement is good, indicating that the multiple-scattering method is capable of providing a realistic first approximation to the electron-molecule interaction. At the same time, small systematic disagreements with experiment indicate clearly the need and objective of future improvements.