2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40413We present a short survey of the theoretical expectations on glueballs and hybrids as well as of the present phenomenological status. The possibility to obtain new information on gluonic mesons from the study of gluon jets in comparison to quark jets is discussed.presented at the XXX Int. Symposium on Multiparticle Dynamics 2000, Tihany, Hungary, Oct. 2000; 6 pages in Latex + 2 figs. in psHigh Energy Physics - Phenomenologytext