QCD 演化中结构函数的理论不确定性及其对 $\alpha_s(M_Z^2)$ 的影响
高能物理 - 唯象学
2015-06-25 v2
摘要
讨论了在强色力学演化 parton 密度和结构函数过程中，各类下一引导阶梯公式之间的差异。其定量影响被认为可准确到 0.02\%。研究了由于自由选择重整化标度和分解标度而产生的不确定性。估计了这些不同不确定性对从深层非弹性散射中的尺度违反反射提取强耦合常数 的定量影响，适用于 HERA 实验可及的运动学区间。
关键词
引用
@article{arxiv.hep-ph/9609217,
title = {Theoretical Uncertainties in the QCD Evolution of Structure Functions and their Impact on $\alpha_s(M_Z^2)$},
author = {J. Blümlein and S. Riemersma and W. L. van Neerven and A. Vogt},
journal= {arXiv preprint arXiv:hep-ph/9609217},
year = {2015}
}
备注
10 pages Latex, including 3 eps-figures, and a style file. To appear in: Proc. of the International Workshop: QCD and QED in Higher Orders, Rheinsberg, April, 1996, Nucl. Phys. {\bf B} (Proc. Suppl); The lay-out of the paper has been changed, one figure sent separately before has been bound in