2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48054It is shown that the multiplicity distribution associated to self-shadowing events satisfies an universal equation in terms of the minimum bias distribution. The number of elementary collisions, basic in the structure of any multiple scattering, is reduced if a collective effect like percolation of strings takes place. The main consequences of the percolation are briefly discussed.10 pages, 4 Postscript figures. Talk given in the workshop Particle Distributions in Hadronic and Nuclear Collisions, University of Illinois at ChicagoHigh Energy Physics - Phenomenologytext