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Quark exchange corrections to the deuteron form factor
I.T. Obukhovskii, E. V. Tkalya
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Abstract
The contribution to the deuteron form factor from small NN distances is studied in the quark approach. Instead of dividing the deuteron wave function into the NN and 6q components, the decomposition of the deuteron current into direct and exchange terms has been used. This allows one to avoid double counting of the contributions. Calculations with the relativistic oscillator model lead to a negligibly small exchange contribution to the form factor for 0<-q/sup 2/<6 GeV/sup 2//c/sup 2/. However, this is merely a consequence of the mutual compensation of different 6q contributions, each of which is not small. If there is a resonance in one of the 6q states the quark exchange contribution can increase by an order of magnitude.