Quantum Mechanical Theory of a Structured Atom-Diatom Collision System: A+BC (Singlet Sigma).

摘要

The problem of a doublet P state atom colliding with a singlet sigma state diatom, which involves multiple potential surfaces, is investigated. Within a diabatic representation for the electronic degrees of freedom (plus spin-orbit interaction), coupled scattering equations are derived in both space-fixed and body-fixed coordinate systems, and coefficients analogous to Percival-Seaton coefficients are exhibited. Approximations to the exact equations, including angular momenta decoupling approximations, are discussed for both the space-fixed and body-fixed formalisms. (Author)