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arXiv 1606.02887hep-ph
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Altarelli-Parisi分裂函数的双圈QED修正

Two-loop QED corrections to the Altarelli-Parisi splitting functions

Daniel de Florian, German F. R. Sborlini, German Rodrigo

摘要:

通过对著名的非线性光学QCD修正进行解构算法阿贝尔化,我们计算了Altarelli-Parisi(AP)分裂函数的双环QED修正。我们提出了明确的结果,为全套分裂内核的基础上,包括轻子分布函数,从这个顺序在QED耦合,耦合到部分子密度。最后,我们对这些修正对分裂函数的影响进行了唯象分析。

英文摘要:

We compute the two-loop QED corrections to the Altarelli-Parisi (AP) splitting functions by using a deconstructive algorithmic Abelianization of the well-known NLO QCD corrections. We present explicit results for the full set of splitting kernels in a basis that includes the leptonic distribution functions that, starting from this order in the QED coupling, couple to the partonic densities. Finally, we perform a phenomenological analysis of the impact of these corrections in the splitting functions.

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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