2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37716Some recent QCD results from the OPAL Collaboration are summarized. In particular: a test of color reconnection models and a search for glueballs using gluon jets with a rapidity gap; a study of unbiased gluon jet properties using a new technique called jet boost algorithm; a measurement of the strong coupling constant from radiative events.5 pages, 2 figures. Invited talk at the XIIth International Workshop on Deep-Inelastic Scattering DIS2004, 14-18 April 2004, Strbske Pleso, Slovakia; OPAL-CR521High Energy Physics - Experimenttext