Transport Cross Sections and Collision Integrals for O(3P)-O(3P) Interaction

New collision integrals and transport cross sections for O(P-3)-O(P-3) interaction are reported in the 300-30000 K range. Those values are based on a new set of potential energy curves (PECs) calculated with the multireference configuration interaction method. The results of the classical and semiclassical WKB (Wentzel-Kramers-Brillouin) methods are compared, excellent performance of the classical approach is shown (discrepancy much lower than 1% even at room temperature). In particular, the classical and WKB methods agree very well for the repulsive potentials effectively reducing overall uncertainty.