Calculation of Rotational and Vibrational Transitions for the Collision of an Atom with a Rotating Vibrating Diatomic Oscillator

摘要: A practical method is presented for computing the T‐matrix elements a rotating, vibrating oscillator. simple model used which approximates features of He–H2 system. It found that rigidrotor approximation in error even at energies well below threshold vibrational excitation. For computation rotational transitions from ground to first accessible excited state, many may be neglected but some must included. At high energies, it shown any particular transition states not strongly coupled involved neglected. presence prohibitively time consuming. In total cross section, calculation including only state gives remarkably good results.