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 q2.
@article{arxiv.hep-ph/9906320,
title = {Higher-twist corrections to nucleon structure functions from lattice QCD},
author = {S. Capitani and M. Göckeler and R. Horsley and D. Petters and D. Pleiter and P. Rakow and G. Schierholz},
journal= {arXiv preprint arXiv:hep-ph/9906320},
year = {2008}
}
Comments
Talk given by G. Schierholz at DIS99, April 19 - 23, 1999, Zeuthen, Germany