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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Dades bibliogràfiques
Autors principals: Behring, A, Melnikov, K, Rietkerk, R, Tancredi, L, Wever, C
Format: Journal article
Idioma:English
Publicat: American Physical Society 2019
Descripció
Sumari: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 computation shows that a fully-differential description of simple color singlet production processes at a hadron collider at N3LO in perturbative QCD is within reach.