2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49362A recent lattice calculation of the spin-dependent structure function g_2 is revisited. It has been recognized that the twist-three operator, which gives rise to d_2, mixes non-perturbatively with operators of lower dimensions under renormalization. This changes the results substantially.Talk given by G. Schierholz at `Workshop on Polarized Protons at High Energies - Accelerator Challenges and Physics Opportunities', 17 - 20 May 1999, DESY, Hamburg, GermanyHigh Energy Physics - PhenomenologyHigh Energy Physics - Latticetext