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arXiv 0803.1940hep-ph
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自旋相关强子对光生的次首阶QCD修正

Next-to-leading order QCD corrections to spin-dependent hadron-pair photoproduction

Christof Hendlmeier, Andreas Schafer, Marco Stratmann

摘要:

我们计算了强子对光生的自旋相关截面的“直接”部分的次-首阶QCD修正。计算主要使用分析方法进行。我们提出了一个简短的唯象研究,我们的结果集中在$K$的因素和规模的依赖下到领先的截面。这一过程与当前和未来自旋相关轻子-核子散射实验中胶子极化的提取有关。

英文摘要:

We compute the next-to-leading order QCD corrections to the ``direct'' part of the spin-dependent cross section for hadron-pair photoproduction. The calculation is performed using largely analytical methods. We present a brief phenomenological study of our results focussing on the $K$-factors and scale dependence of the next-to-leading order cross sections. This process is relevant for the extraction of the gluon polarization in present and future spin-dependent lepton-nucleon scattering experiments.

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