2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179983The Nachtmann moment is employed to study the contribution of twist-3 operator to the nucleon spin structure functions. Target mass corrections to the Cornwall-Norton moments of the spin structure functions $g_{1,2}$ are discussed. It is found that the corrections play a sizeable role to the contribution of the twist-3 $\tilde d_2$ extracted from the Cornwall-Norton moments.11 pages, 1 figuresHigh Energy Physics - Phenomenologytext