2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45968A simple semiquantitative picture of diffractive electroproduction is described. Although the diffractive component of $F_2$ is approximately independent of $Q^2$ and $W^2$, this mechanism is "soft," i.e. it depends upon large-distance physics and is not readily describable within perturbative QCD.LaTex 14 pages, 3 figures. To obtain a copy, send e-mail to techpub@slac.stanford.eduHigh Energy Physics - Phenomenologytext