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PUBDB-2026-01533

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The variable flavor number scheme to three-loop order

Ablinger, J.DESY* ; Behring, A.DESY* ; Blümlein, J. (Corresponding author)DESY* ; De Freitas, A.Extern* ; von Manteuffel, A.Extern* ; Schneider, C.Extern* ; Schönwald, K.Extern*

2026
SISSA Trieste

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Please use a persistent id in citations: doi:10.22323/1.521.0025  doi:10.3204/PUBDB-2026-01533

Report No.: CERN-TH-2026-113; DESY-26-064; MPP-2026-89; RISC Report number 26-06; arXiv:2607.05235

Abstract: We describe the variable flavor number scheme to three-loop order, which modifies the massless parton densities by single- and two-mass effects and introduces heavy-quark parton distribution functions for charm and bottom. A renormalization group analysis shows the validity of this picture at large scales $Q^2$, where it resembles the non-power suppressed heavy-flavor corrections completely. We also provide numerical implementations of a series of charged and neutral current Wilson coefficients

Note: PoS (LL2026) 025. PoS (LL2026) 025. 11 pages Latex + pictures https://pos.sissa.it/521/

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Contributing Institute(s):

1. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. TOPUP - Theory of particle collider processes at ultimate precision (101019620) (101019620)

Experiment(s):

1. HERA: H1

Appears in the scientific report 2026

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Ablinger, J. ; Behring, A. ; Blümlein, J. (Corresponding author)DESY* ; De Freitas, A. ; von Manteuffel, A.Extern* ; Schneider, C. ; Schönwald, K.
The variable flavor number scheme to three-loop order
(2026) [10.3204/PUBDB-2026-03343]2026     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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