Preprint

PUBDB-2024-04727

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A Benchmarking of QCD Evolution at Approximate $N^3LO$

Cooper-Sarkar, A. ; Cridge, T. (Corresponding author)DESY* ; Giuli, F. ; Harland-Lang, L. A. ; Hekhorn, F. ; Huston, J. (Corresponding author) ; Magni, G. ; Moch, S.Extern* ; Thorne, R. S.

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-04727

Report No.: DESY-24-088; arXiv:2406.16188

Abstract: We present a detailed benchmarking of different treatments of the QCD evolution of unpolarized PDFs at approximate $N^3LO$ ($aN^3LO$) order in the QCD coupling. Namely, the implementations in the public $aN^3LO$ releases of the MSHT and NNPDF global PDF fitters, as well as that of the theoretical FHMRUVV collaboration are compared. This follows the same procedure as in previous benchmarking exercises at lower order, that is by considering the impact of this evolution on a set of simple toy PDFs.

Keyword(s): quantum chromodynamics

Note: Submitted to arxiv:2406.16188

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. COLORFREE - High-Precision Global Analysis of Color-Free LHC Processes at Small Recoil (101002090) (101002090)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
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