2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49315We briefly review the present theoretical and experimental knowledge on Delta_g and J_g.8 pages, 2 figures, Proceed. Second International Conference on Perspectives in Hadronic Physics. Miramare - Trieste, Italy, May 1999High Energy Physics - PhenomenologySpin and total angular momentum of the gluetext