COMPUTATIONAL TESTS OF THE FACTORIZATION OF CROSS-SECTIONS IN THE SUDDEN APPROXIMATION

The factorization expressions for cross sections reported by Goldflam, Green and Kouri and independently by Khare are tested using accurate close coupling input for e- + H2, H + H2, He + (HF, DF, HCl, DCl) and Ar + N2. The results at the degeneracy averaged cross section level are used to illustrate accuracy criteria given for the factorization. Effects studied include variation of the projectile reduced mass, influence of initial and final rotor state, collision energy and potential anisotropy. © 1979.