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Twist-4 distribution amplitudes of the K* and phi mesons in QCD

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Ball, Patricia ; Braun, Vladimir M. ; Lenz, Alexander
Date of publication of this fulltext: 22 Mar 2010 12:24


We present a systematic study of twist-4 light-cone distribution amplitudes of the K* and phi meson in QCD. The structure of SU(3)-breaking corrections is studied in detail. Non-perturbative input parameters are estimated from QCD sum rules and a renormalon based model. As a by-product, we give a complete reanalysis of the parameters of the twist-4 ρ-meson distribution amplitudes.

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