Accession Number : AD0282841

Title :   CONTRIBUTION TO THE THEORY OF INELASTIC MOLECULAR COLLISIONS

Corporate Author : CORNELL UNIV ITHACA N Y

Personal Author(s) : WEINSTOCK,JEROME

Report Date : 1959

Pagination or Media Count : 1

Abstract : The validity of the distorted wave (dw) approximation for the solution of the vibrational energy transfer problem is investigated. T HE BEHAVIOR OF THE TRANSITION PROBABILITY INTEGRAL IS SHOWN TO BE DETERMINED BY HE BEHAVIOR OF ITS INTEGRAL AT A SINGLE POINT. This critical point is used to obtain an exact solution of the transition probability with which the dw solution is compared. The dw solution is found to lie within 20% of the exact solution whenever the transition probability is less than roughly 0.6. The existence of the critical point leads to a simple expression for the transition probability in terms of an arbitrary interaction potential. The effects of adiabatic changes due to short range repulsive forces are investigated by means of the method of perturbed stationary states. (Author)

Descriptors :   *INELASTIC SCATTERING, *PERTURBATION THEORY, *RELAXATION TIME, DIFFERENTIAL EQUATIONS, ENERGY, PROBABILITY, WAVE ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE