Twist-3 Distribution Amplitudes of K* and phi Mesons

Details Twist-3 Distribution Amplitudes of K* and phi Mesons Twist-3 Distribution Amplitudes of K* and phi Mesons

2007-02-09

arxiv.org/abs/hep-ph/0702100v1

JHEP 0703:069,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages

Scientific paper

10.1088/1126-6708/2007/03/069

We present a systematic study of twist-3 light-cone distribution amplitudes of $K^*$ and $\phi$ mesons in QCD. The structure of SU(3)-breaking corrections is studied in detail. Non-perturbative input parameters are estimated from QCD sum rules. As a by-product, we update the parameters describing the twist-3 distribution amplitudes of the $\rho$ meson. We also review and update predictions for the twist-2 distribution amplitudes of $\rho$, $K^*$ and $\phi$.

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