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arXiv hep-ph/9507253hep-ph
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QCD中的主导功率修正:从重正马龙到现象学

Leading Power Corrections in QCD: From Renormalons to Phenomenology

R. Akhoury, V. I. Zakharov

摘要:

我们考虑$1/Q$修正QCD硬过程中,Q是一个大的质量尺度,集中在$e^{+}e^{-}$湮灭的形状变量。虽然这种修正的证据可以而且已经通过重正化子技术建立起来,但只有在澄清相应的非微扰贡献的性质之后,理论才能与实验相对抗。我们列出预测的基础上的普遍性的$1/Q$条款,并将它们与现有的数据进行比较。我们还确定了规模的非微扰贡献的射流质量。

英文摘要:

We consider $1/Q$ corrections to hard processes in QCD where Q is a large mass scale, concentrating on shape variables in $e^{+}e^{-}$ annihilation. While the evidence for such corrections can be and has been established by means of the renormalon technique, theory can be confronted with experiment only after clarifying the properties of the corresponding non-perturbative contribution. We list predictions based on the universality of the $1/Q$ terms, and compare them with the existing data. We also identify the scale of the non-perturbative contributions in terms of jet masses.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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