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MAPPING OUT THE QUARK STRUCTURE OF HADRONS IN QCD A. P. Bakulev, S. V. Mikhailov, N. G. Stefanis In the context of QCD sum rules with nonlocal condensates we present a pion distribution amplitude, which is double-humped with its end-points x (0, 1) and strongly suppressed, and show that it matches the CLEO experimental data on the pion-photon transition at the 1s level accuracy, being also in compliance with the CELLO data. We also include some comments on the nucleon distribution amplitude and the nucleon evolution equation. |