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Preprint
Report number DESY-24-088 ; arXiv:2406.16188
Title A Benchmarking of QCD Evolution at Approximate $N^3LO$
Author(s) Cooper-Sarkar, A. (Oxford U.) ; Cridge, T. (DESY) ; Giuli, F. (CERN) ; Harland-Lang, L.A. (University Coll. London) ; Hekhorn, F. (Jyvaskyla U. ; Helsinki U.) ; Huston, J. (Michigan State U.) ; Magni, G. (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Moch, S. (Hamburg U., Inst. Theor. Phys. II) ; Thorne, R.S. (University Coll. London)
Imprint 2024-06-23
Number of pages 24
Subject category hep-ph ; Particle Physics - Phenomenology
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.
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 記錄創建於2024-07-05,最後更新在2024-12-28


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