Model of the soft structure of nucleons

The possibility of extending the Feynman quark-parton model to the region of small momentum transfers is considered. Expressions for elastic form factors and structure functions are obtained. The behavior of the Sachs form factor is shown to obey the dipole formula. The nucleon magnetic moment is expressed in terms of the minimum value xmin of the momentum fraction carried by a constituent. The value of xmin corresponds to the effective constituent mass m=0.27 GeV. In this model, the violation of the Callan-Gross ratio is associated with the dynamics of soft processes. A calculation scheme of hadronization is proposed and elaborated to describe proton dissociation in soft ep scattering. The scheme does not require knowledge of the fragmentation function. 14 refs., 11 figs