Abstract
The internal conversion processD* →De+e−, andD*\(\bar D\)-pair production ine+e−-collisions,e+e− →D*\(\bar D\), which are described by the same electromagnetic form factor with time-like momentum transfer, have been analyzed. After carrying out a general analysis of the kinematical aspects of the one-photon mechanism has been performed and the predictions of the vector-dominance model for theD* →D transition form factor are discussed. It is shown that use of the asymptotic behaviour of the form factors ofD*+,0 →D+,0γ* and the theoretical values of constants ofD*+,0 → D+,0γ radiative decay enables one to determine part of the unknown parameters of these form factors. The coefficient of the internal conversion forD* →De+e− is calculated and is shown to be model independent.
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