2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42922The running QCD coupling effects for $g_1$ singlet are studied. We predict that asymptotically $g_1^S \sim x^{- Δ_S}$, with the singlet intercept $Δ_S \approx 0.85$.Talk given at the "XI International Workshop on Deep Inelastic Scattering (DIS2003)", Saint Petersburg, 23-27 April 2003; 6 pagesHigh Energy Physics - Phenomenologytext