2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/178705The reaction pp -> pf (pi+pi-pi0) ps has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the dPT filter applied. The analysis confirms the previous observation that all undisputed qqbar states are suppressed at small dPT. In addition, a clear difference is observed in the production mechanism for the eta and omega.13 pages, Latex, 4 FiguresHigh Energy Physics - Experimenttext