QED corrections to the Altarelli-Parisi splitting functions
Abstract
We discuss the combined effect of QED and QCD corrections to the evolution of parton distributions. We extend the available knowledge of the Altarelli-Parisi splitting functions to one order higher in QED, and provide explicit expressions for the splitting kernels up to O(α \, αS). The results presented in this article allow to perform a parton distribution function analysis reaching full NLO QCD-QED combined precision.
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