Dynamical Lie algebraic treatment for the A+BC scattering

We report the study of translational-vibrational energy transfer in the A BC scattering using the dynamical Lie algebraic approach combined with the intermediate picture. The rotational sudden approximation is applied to tr eat the rotational motion of the BC molecule, which is regarded as an anhar monic oscillator. The calculated results show that the transition probabili ties increase with increasing rotational quantum number. Comparison with th ose obtained in the collinear collision of system A + BC manifests that the transition probabilities here increase indeed. (C) 2001 John Wiley Sons, I nc.