QCD SUM-RULES AND COMPTON-SCATTERING

被引：11
|
作者：
CORIANO, C
RADYUSHKIN, A
STERMAN, G
机构：
[1] UNIV STOCKHOLM,DEPT PHYS,S-113 VANADISVAGEN,SWEDEN
[2] OLD DOMINION UNIV,DEPT PHYS,NORFOLK,VA 23529
[3] CONTINUOUS ELECTR BEAM ACCELERATOR FACIL,NEWPORT NEWS,VA 23606
来源：
NUCLEAR PHYSICS B | 1993年 / 405卷 / 2-3期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0550-3213(93)90556-5
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 extend QCD sum rule analysis to moderate energy fixed-angle Compton scattering. In this kinematic region there is a strong similarity to the sum rule treatment of electromagnetic form factors, although the four-point amplitude requires a modification of the Borel transform. To illustrate our method, we derive the sum rules for helicity amplitudes in pion Compton scattering and estimate their large-t behavior in the local duality approximation.
引用
收藏
页码：481 / 506
页数：26
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