%0 Journal Article
%T Fine structure of spectrum of twist-three operators in QCD
%A A. V. Belitsky
%J Physics
%D 1999
%I arXiv
%R 10.1016/S0370-2693(99)00326-3
%X We unravel the structure of the spectrum of the anomalous dimensions of the quark-gluon twist-3 operators which are responsible for the multiparton correlations in hadrons and enter as a leading contribution to several physical cross sections. The method of analysis is bases on the recent finding of a non-trivial integral of motion for the corresponding Hamiltonian problem in multicolour limit which results into exact integrability of the three-particle system. Quasiclassical expansion is used for solving the problem. We address the chiral-odd sector as a case of study.
%U http://arxiv.org/abs/hep-ph/9902361v2