Abstract
Differential and integral cross sections have been determined for scattering of 4.5 eV electrons by ground (X3 Sigma g-) state and metastable (a1 Delta g) oxygen molecules. The cross section for the excitation of the b1 Sigma g+ state from the a1 Delta g state is more than an order of magnitude larger than from the ground (X3 Sigma g-) state. The principle of detailed balancing was found to be applicable to the rotationally unresolved (X to a) vibrational bands of the electronic transition.