2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/187039We present a complete description of the calculation of the spin-dependent next-to-leading order splitting functions. The calculation is performed in the light-cone gauge. We give results for different prescriptions for the Dirac matrix $γ_5$ in $d=4-2 ε$ dimensions and provide the link to the results in dimensional reduction.25 pages, including 3 figures and 4 tables (4 additional style files included)High Energy Physics - Phenomenologytext