Inclusion of two vibrational modes in dissociative electron attachment and vibrational excitation of CF$_3$Cl revisited*

We present a study of multimode effects in vibrational excitation of CF$_3$Cl molecule by electron impact as well as in the dissociative electron attachment. We use a time-independent version of the local complex potential theory. Symmetric stretch C-Cl vibrations $\nu_3$ and symmetric deformation (or so-called ``umbrella'') vibrations $\nu_2$ are included. The approach used in the present study was described previously. The complex potential energy surfaces used in the present calculations were obtained using the ab initio R-matrix method. In our previous study of the dissociative electron attachment we found an increase of the total cross section as compared to one-dimensional calculations. This was explained by an increase of the anion survival probability due to model-like width function used. Our present calculations use the ab initio width and lead to smaller survival probability.