Journal Article

PUBDB-2025-05791

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Combination of aN$^3$LO PDFs and implications for Higgs production cross-sections at the LHC

Cridge, T.DESY* ; Harland-Lang, L. A. ; McGowan, J. ; Thorne, R. S. ; Ball, R. D. ; Candido, A. ; Carrazza, S. ; Cruz-Martinez, J. ; Del Debbio, L. ; Forte, S. ; Hekhorn, F. ; Magni, G. ; Nocera, E. R. ; Rabemananjara, T. R. ; Rojo, J. (Corresponding author) ; Stegeman, R. ; Ubiali, M. ; MSHT Collaboration (Collaboration author)

2025
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/1361-6471/adde78  doi:10.3204/PUBDB-2025-05791

Report No.: CERN-TH-2024-167; DESY-24-134; Edinburgh 2024/9; TIF-UNIMI-2024-17; arXiv:2411.05373

Abstract: We discuss how the two existing approximate N$^3$LO (aN$^3$LO) sets of parton distributions (PDFs) from the MSHT20 and NNPDF4.0 series can be combined for LHC phenomenology, both in the pure QCD case and for the QCD$\otimes$QED sets that include the photon PDF. Using the resulting combinations, we present predictions for the total inclusive cross-section for Higgs production in gluon fusion, vector boson fusion, and associated production at the LHC Run-3. For the gluon fusion and vector boson fusion channels, the corrections that arise when using correctly matched aN$^3$LO PDFs with N$^3$LO cross section calculations, compared to using NNLO PDFs, are significant, in many cases larger than the PDF uncertainty, and generally larger than the differences between the two aN$^3$LO PDF sets entering the combination. The combined aN$^3$LO PDF sets, MSHT20xNNPDF40_an3lo and MSHT20xNNPDF40_an3lo_qed, are made publicly available in the LHAPDF format and can be readily used for LHC phenomenology.

Note: 22 pages, 11 figures, LHAPDF grids available from https://zenodo.org/records/13843626, matches published version

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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 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Cridge, T. (Corresponding author)Extern*DESY* ; Harland-Lang, L. A. ; McGowan, J. ; Thorne, R. S. ; Ball, R. D. ; Candido, A. ; Carrazza, S. ; Cruz-Martinez, J. ; Del Debbio, L. ; Forte, S. ; Hekhorn, F. ; Magni, G. ; Nocera, E. R. ; Rabemananjara, T. R. ; Rojo, J. ; Stegeman, R. ; Ubiali, M. ; MSHT Collaboration (Collaboration author) ; NNPDF Collaboration (Collaboration author)
Combination of aN$^3$LO PDFs and implications for Higgs production cross-sections at the LHC
[10.3204/PUBDB-2024-05823]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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