2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47479Some nonperturbative aspects of spin studies at RHIC are discussed and the predictions for single- and two-spin asymmetries are given. Among them are those which emphasize the role of angular orbital momentum in the spin structure of the constituent quarks.9 pages, Latex, 2 figuresHigh Energy Physics - Phenomenologytext