Monte Carlo averaging technique for analysis of elastic laboratory differential cross section data

The concept of an apparatus function which is only a function of the centre-of-mass scattering angle theta and relative velocity g is used to analyse elastic laboratory differential cross section data in terms of an intermolecular potential. The apparatus function is calculated by Monte Carlo simulation techniques. Examples are given for calculated laboratory angular distributions under various experimental resolutions. The method is applied to differential cross section measurements of Ar-Ar, Ar-Kr, Ne-Ar and Ne-Kr. Good fits are obtained for the existing Ar2 potentials, while potentials published for the other systems are to be altered slightly to produce the best fits. (author)