2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38302Results of the ethapi+pi- and omegaomega final state partial wave analysis(PWA) are presented. The mass-independent and the mass-dependent PWA were performed. The ethapi+pi- system PWA results in the observation of the resonances in the JPC=1--,3--,2++ and 4++ waves. The results of the omegaomega system PWA confirms the existence of the f2(1565) and f4(2050). The f2(1950) is observed. There is evidence for a f4(2300) meson.6 pages, 3 figures, latex, frascatiphys.sty, epsfig.sty Talk given at Workshop on Hadron Spectroscopy, Rome, Italy, 8-12 Mar 1999High Energy Physics - ExperimentNatural parity resonances in the etha pi+ pi- and omega omegatext