Stopping in ultrarelativistic heavy-ion collisions and color screening

It is explained that a large cross section and an increase with energy of diffractive production of nucleons (${\mathit{N}}^{\mathrm{*}}$, . . .) (${\mathit{E}}_{\mathit{N}}$,${\mathit{E}}_{\mathit{N}}^{\mathrm{*}}$≥${\mathit{E}}_{\mathit{A}}$/A) in central collisions of light (A) and heavy (B) nuclei would signal the color-screening phenomenon and large fluctuations of size in the nucleon wave function. In particular, we find that for ${\mathit{E}}_{\mathit{A}}$/A≥200 GeV and B∼240, the probability of diffractive nucleon production should increase by a factor >5 as compared to that observed at BNL energies.