Quark beam function at next-to-next-to-next-to-leading order in perturbative QCD in the generalized large- Nc approximation

We present the matching coefficient for the quark beam function at next-to-next-to-next-to-leading order in perturbative QCD in the generalized large Nc-approximation, Nc ∼ Nf ≫ 1. Although several refinements are still needed to make this result interesting for phenomenological applications, our co...

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Hlavní autoři: Behring, A, Melnikov, K, Rietkerk, R, Tancredi, L, Wever, C
Médium: Journal article
Jazyk:English
Vydáno: American Physical Society 2019