2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/195928Similar to electromagnetic forces, strong interactions might induce such collective effects as Cherenkov and Mach waves. Their conical structure would be responsible for specific ring-like events. The theoretical and experimental arguments in favor of these phenomena are discussed and their most important features are described.12 pages, 5 figures, LATEX, misprint correctedHigh Energy Physics - Phenomenologytext