4 papers · 1 filter
Integrability of twist-three evolution equations in QCD
A. V. Belitsky
We describe a recent progress in finding solutions to three-particle evolution equations at leading order in the QCD coupling constant for multiparton correlation functions based o…
Leading-order analysis of the twist-3 space- and time-like cut vertices in QCD
A. V. Belitsky
We review the recent theoretical progress in the construction and solution of the evolution equations which govern the scale dependence for the twist-three structure and fragmentat…
Valence parton dencity in the pion from QCD sum rules
A. V. Belitsky
We calculate the leading twist valence quark distribution in the pion in the franework of QCD sum rules with nonlocal condensates. Particular attention has been paid to the correct…
Gluon Contribution to the Transverse Spin Structure Function g2
A. V. Belitsky, A. V. Efremov, O. V. Teryaev
We consider the twist-3 gluon contribution to the transverse spin structure function .We find that the Burkhardt-Cottingham sum rule is satisfied. The additional {\it nonlocal…