Twist-three effects in two-photon processes

被引：116

作者：

Belitsky, AV ^{[1
]}

Müller, D

机构：

[1] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA

[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

NUCLEAR PHYSICS B | 2000年 / 589卷 / 03期

基金：

美国国家科学基金会;

关键词：

two-photon processes; deeply virtual Compton scattering; skewed parton distribution; twist-three contributions;

D O I：

10.1016/S0550-3213(00)00542-3

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 give a general treatment of twist-three effects in two-photon reactions. We address the issue of the gauge invariance of the Compton amplitude in generalized Bjorken kinematics and relations of twist-three 'transverse' skewed parton distributions to twist-two ones and interaction dependent three-particle correlation functions. Finally, we discuss leading order evolution of twist-three functions and their impact on the deeply virtual Compton scattering. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：611 / 630

页数：20

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