Normalizing the Renormalization Group in Deep Inelastic Leptoproduction. CTP No. 878

摘要

The quark-bag model is used to calculate the nucleon matrix elements of local twist-two operators. Bag matrix elements applicable to low Q exp 2 are evolved by use of QCD perturbation theory to a value of Q exp 2 large enough that the data can be expected to be dominated by twist-two. Nonsinglet moments of F sub 3 are plotted. Although only twist-two was studied, the work has implications for higher twist. It is concluded that either the twist-two operator matrix element is Q exp 2 dependent or the bag model predictions for twist-two are very wrong. 2 figures. (ERA citation 06:001519)