Quark distributions in QCD sum rules: unexpected features and paradoxes

Details Quark distributions in QCD sum rules: unexpected features and paradoxes Quark distributions in QCD sum rules: unexpected features and paradoxes

2006-10-08

arxiv.org/abs/hep-ph/0610090v1

Phys.Atom.Nucl.71:1439-1444,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figs

Scientific paper

10.1134/S1063778808080152

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 $\rho$ mesons structure functions and the strong suppression of the gluon sea in longitudinally polarized $\rho$ mesons are discussed. Also the problem of exact zero contribution of gluon condensates to pion and longitudinally polarized $\rho$ meson quark distributions is discussed.

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