[Legenda]

[Contents of the thesis]

[Comments]

Leads for further research=A05-m6b

A simple classical atom-atom model qualitatively explains the relative differential cross sections of chemi-ionization processes M + X₂ M⁺ + (X + X^-). However, there is still no reliable quantitative explanation . A simple classical atom-atom model is not sufficient for the explanation of ion-pair formation in molecular collisions.}

It has already been found that the total cross sections of collisions between Li or Na atoms and I atoms can be described using the Landau-Zener transition probability. The question is whether the differential cross section of such a simpler system can also be explained using the Landau-Zener model.

	[click for note added in hindsight] The differential cross section of the collision process have been determined in a later article and it was found that the cross section is indeed described by the simple atom-atom model with the Landau-Zener transition probability .

For a more detailed study the experimental resolution should be enhanced. Recently we have replaced the sputtering source by a charge-exchange source In the near future we shall determine the potential parameters of some alkali atom-halogen molecule potential curves by quantum-mechanical calculations and with the help of better resolved differential cross sections.