MSHT Approximate N3LO PDFs: Updates and Consequences for Phenomenology

2025/10/10 by Cridge, T., Harland-Lang, L. A., Thorne, R. S. · 1 citation
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2510.09321

Abstract

We present updates to the MSHT approximate N3LO PDFs focusing upon recent developments, examining the impacts of newly determined splitting function and transition matrix element calculations, performed since the public MSHT20aN3LO PDF set was released. We observe only small changes to the output PDFs, at most of similar size to their quoted uncertainties and typically notably less. Finally, we also present the impacts on the PDF luminosities, where changes are generally further reduced.

Citations

• QED-enhanced PDF implications for the Higgs sector
• Towards N³LO PDFs and their implications for Higgs production cross-sections
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• Four-loop splitting functions in QCD -- The gluon-gluon case --
• MSHT Updates 2024
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• The double fermionic contribution to the four-loop quark-to-gluon splitting function
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• Heavy Flavor Wilson Coefficients in Deep-Inelastic Scattering: Recent Results

Cited by

• The impact of inclusive electron ion collider data on the strong coupling determination in a global PDF fit
• A reassessment of the role of high x data on the MSHT global PDF fit

Related

• MSHT Updates 2024
• Updates of PDFs in the MSTW framework
• Towards N³LO PDFs and their implications for Higgs production cross-sections
• Status of MRST/MSTW PDF sets
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