Quark distributions in QCD sum rules: unexpected features and paradoxes
Abstract
Some very unusual features of the hadron structure functions, obtained in the generalized QCD sum rules, like the surprisingly strong difference between longitudinally and transversally polarized mesons structure functions and the strong suppression of the gluon sea in longitudinally polarized mesons are discussed. Also the problem of exact zero contribution of gluon condensates to pion and longitudinally polarized meson quark distributions is discussed.
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.