Twist-4 Distribution Amplitudes of the K$^*$ and $Ï$ Mesons in QCD
arXiv:0707.1201 · doi:10.1088/1126-6708/2007/08/090
Abstract
We present a systematic study of twist-4 light-cone distribution amplitudes of the $K^*$ and $Ï$ 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 $Ï$-meson distribution amplitudes.
41 pages, 15 figures