QCD Sum Rules and Compton Scattering
High Energy Physics - Phenomenology
2014-11-17 v1
Abstract
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- behavior in the local duality approximation.
Cite
@article{arxiv.hep-ph/9301274,
title = {QCD Sum Rules and Compton Scattering},
author = {Claudio Coriano' and Anatoly Radyushkin and George Sterman},
journal= {arXiv preprint arXiv:hep-ph/9301274},
year = {2014}
}
Comments
30 pages in Latex, 6 figures not included, available upon request (send email to: [email protected]), ITP-SB-92-70, CEBAF-TH-92-32