Higher-twist corrections to nucleon structure functions from lattice QCD

Abstract

A genuinely non-perturbative evaluation of higher-twist contributions to the structure functions of the nucleon, with all mixing effects and renormalon ambiguities taken care of, is presented. Higher-twist corrections turn out to be significant at moderate values of $q^2$.

Talk given by G. Schierholz at DIS99, April 19 - 23, 1999, Zeuthen, Germany

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