2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202541The evaluation of the higher twist contributions to Deep Inelastic Scattering amplitudes involves a non trivial choice of operator bases for the higher orders of the OPE expansion of the two hadronic currents. In this talk we discuss the perturbative renormalization of the four-fermion operators that appear in the above bases.LATTICE98(matrixelement), 3 pagesHigh Energy Physics - Latticetext