遍举过程的端点行为:微扰QCD的黄昏区域
高能物理 - 唯象学
2007-05-23 v1
摘要
我们研究了遍举反应中微扰QCD与非微扰QCD交界处的一系列选定主题。讨论了与完整强子动量转移的不同机制相关的具体问题。在卷积方案中,回顾了π介子和核子的类空形状因子的计算,该方案包含短距离(硬)和长距离(软)贡献,并考虑了软胶子发射和强子的固有横向尺寸。该方案未能重现现有实验数据,表明存在显著的高阶微扰修正(约为二阶的K因子)或高扭曲贡献。
引用
@article{arxiv.hep-ph/9607230,
title = {End-Point Behavior of Exclusive Processes: The Twilight Regime of Perturbative QCD},
author = {N. G. Stefanis},
journal= {arXiv preprint arXiv:hep-ph/9607230},
year = {2007}
}
备注
LaTeX, using Worldstyle and comprising two eps files, and three ps files (11 pages in total). Invited plenary talk presented at HADRON STRUCTURE '96 High Energy Interactions: Theory and Experiments, Stara Lesna, High Tatra, Slovac Republic, February 12-17, 1996. To appear in the Proceedings