Higher twist distribution amplitudes of vector mesons in QCD: Formalism and twist 3 distributions

被引：409

作者：

Ball, P

Braun, VM

Koike, Y

Tanaka, K

机构：

[1] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[2] NORDITA, DK-2100 Copenhagen, Denmark

[3] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[4] Juntendo Univ, Dept Phys, Chiba 2701606, Japan

来源：

NUCLEAR PHYSICS B | 1998年 / 529卷 / 1-2期

关键词：

higher twist; distribution amplitude; vector meson; conformal expansion; light-cone;

D O I：

10.1016/S0550-3213(98)00356-3

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 3 light-cone distribution amplitudes of vector mesons in QCD, which is based on conformal expansion and takes into account meson and quark mass corrections. A complete set of distribution amplitudes is constructed for rho, omega, K* and phi mesons, which satisfies all (exact) equations of motion and constraints from conformal expansion. Nonperturbative input parameters are calculated from QCD sum rules, including an update of SU(3) breaking corrections in the leading twist distributions. (C) 1998 Elsevier Science B.V.

引用

收藏

页码：323 / 382

页数：60

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