Quantumhyphen;Mechanical Transition Probabilities for Atomndash;Atomichyphen;Oscillator Collisions with Morse Potential Interaction

摘要

Exact quantumhyphen;mechanical transition probabilities for the collision of an atom with an atomic oscillator for the case in which the interaction has the form of a Morse potential are obtained by numerical integration of the relevant closehyphen;coupled scattering equations. These transition probabilities are compared with approximate ones calculated from distortedhyphen;wave theory over a range of parameters which have been of interest in examining the collision of helium atoms with a tungsten surface. Some information is obtained concerning the range of validity of the firsthyphen;order theory, and certain suggestions that have appeared in the literature for correcting the distortedhyphen;wave results are found to be inadequate.