2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/164052We report on a recent extraction of the higher twist contributions to the deep inelastic structure functions $F_2^{ep,ed}(x,Q^2)$ in the large $x$ region. It is shown that the size of the extracted higher twist contributions is strongly correlated with the higher order corrections applied to the leading twist part. A gradual lowering of the higher twist contributions going from NLO to N$^4$LO is observed, where in the latter case only the leading large $x$ terms were considered.4 pages 2 figuresHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext