Theory of vibrational excitation and dissociative attachment: an R-matrix approach

Abstract
The R-matrix method for electron scattering by diatomic molecules, developed in the authors' earlier papers, is extended to describe vibrational excitation and dissociative attachment. The resultant expressions involve quantities which can be obtained with only small extensions of their existing fixed-nuclei codes. The connection with frame transformation theory is demonstrated and it is shown that structure in resonant vibrational excitation arises naturally from the theory.