Limitations on using the operator product expansion at small values of x
Abstract
Limits on the regions of Q2 and x where the operator product expansion canbe safely used, at small values of x are given. For a fixed large Q2 there is an x0(Q2) such that for Bjorken x-values below x0 the operator product expansion breaks down with significant nonperturbative corrections occurring in the leading twist coefficient and anomlous dimension functions due to diffusion of gluons to small values of transverse momentum.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.