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

被引:107
作者
Ball, Patricia [1 ]
Braun, Vladimir M.
Lenz, Alexander
机构
[1] Univ Durham, IPPP, Dept Phys, Durham DH1 3LE, England
[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
关键词
Kaon physics; phenomenological models; QCD; sum rules;
D O I
10.1088/1126-6708/2007/08/090
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
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 rho-meson distribution amplitudes.
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页数:39
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