Weyl's Theory Applied to Predissociation by Rotation. II Determination of Resonances and Complex Eigenvalues: Application to HgH.

摘要

A numerical scheme for analytic continuation of a complex function using a fit to a rational fraction is described. The procedure is applied to Weyl-Titchmarsh's m function for the case of predissociation by rotation in mercury hydride. It is shown that analytic continuation of the full complex m function, as compare to treating its imaginary part only, is preferable for very broad and nonsymmetric resonance shapes. This situation is particularly pronounced for the close-lying interacting resonances E(3,9) and E(4,9) for the HgH system, as calculated from Stwally's IC1 potential. (Author)