Scaling approach to higher-twist corrections

Abstract

Bjorken scaling is violetd. At large $x$-values ($0.7\lesssim x\le 1$) the violation is mainly attributed to $\propto 1/Q^2$ (higher-twist) corrections. We discuss how to incorporate such corrections by using a new scaling variable $\bar{x}(x,Q^2)$ which accounts for the non-perturbative effects due to the confining parton interaction in the final state. The approach can accomodate also the remaining QCD logarithmic corrections and the behaviour of the $F_2(x,Q^2)$ structure functions is reproduced, in a quite natural way, within a wide kinematical range.

10 pages, 5 figures

References in corpus (6)

• Global QCD Analysis and the CTEQ Parton Distributions
• Measurement of the proton and the deuteron structure functions F2p and F2d
• Relativistic Deuteron Structure Function
• The response of non-relativistic confined systems
• Scaling limit of a non-relativistic model
• Confinement and scaling in deep inelastic scattering

Cited by in corpus (1)

• NNLO nucleon parton distributions from a light-cone quark model dressed with its virtual meson cloud