Mapping out the quark structure of hadrons in QCD

Details Mapping out the quark structure of hadrons in QCD Mapping out the quark structure of hadrons in QCD

2003-12-10

arxiv.org/abs/hep-ph/0312141v1

Phys.Part.Nucl. 35 (2004) 7-16; Phys.Part.Nucl. 35 (2004) S2-S7

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited contribution to the Festschrift in honor of Prof. Anatoly Efremov's 70th birthday; 8 pages, 4 figures as eps-files (wr

Scientific paper

In the context of QCD sum rules with non-local condensates we present a pion distribution amplitude, which is double-humped with its end-points x\to(0,1) strongly suppressed, and show that it matches the CLEO experimental data on the pion-photon transition at the 1\sigma 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.

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