Velocity spectra of forward scattered products

If reaction (64) occurs by ideal spectator stripping, the velocity of the product ion AB is given by 

In Fig. 6 the velocity spectrum for the reaction Ar + Dj - ArD + D is reproduced [27, 93]. The velocities are expressed in units of the velocity Va of the incident ion A in the laboratory system. The peak of the product ion band gives a velocity Vab = 0.962Va which is in good agreement with the value 0.953 Va calculated from eqn. (67). (The value calculated from eqn. (68) is 0.909Va ) 

From similar comparisons of measured spectra with expected values, Henglein et al. concluded that the atom transfer reactions 

Other strong evidence for the stripping mechanism comes from the study of the reaction 

Their velocity spectra further revealed that stripping also occurs in the reactions 

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