Soft contribution to form factors of the gamma*p->Delta(+) transition

The purely nonperturbative soft contribution to the gamma*p-->Delta(+) transition form factors is estimated using a model based on the local quark-hadron duality. In this approach, the soft contribution is shown to be dominated by the magnetic transition:the ratio G(E)*(Q(2))/G(M)*(Q(2)) is Small for all accessible Q(2), in contrast with PQCD expectation that G(E)*(Q(2))-->-G(M)*(Q(2)). We also found that the soft contribution to the magnetic form factor is large enough to explain the magnitude of existing experimental data.