PDF4LHC21: Update on the benchmarking of the CT, MSHT and NNPDF global PDF fits

Cridge, Thomas

doi:10.21468/SciPostPhysProc.8.101

Title: PDF4LHC21: Update on the benchmarking of the CT, MSHT and NNPDF global PDF fits

Journal Article · Wed Jul 13 00:00:00 EDT 2022 · SciPost Physics Proceedings

DOI:https://doi.org/10.21468/SciPostPhysProc.8.101· OSTI ID:1875962

Cridge, Thomas ^[1]

University College London

There have been recent updates to the three global PDF fits (CT, MSHT and NNPDF), all adding large amounts of data from the LHC, and this has resulted in significant changes to the global PDFs. Given the impact that the new PDFs will have on physics comparisons at the LHC, it is crucial to perform a benchmarking among the PDFs, similar in spirit to that which was carried out for PDF4LHC15, widely used for LHC physics. In this article we detail a benchmarking comparison of three global PDF sets - CT18, MSHT20 and NNPDF3.1 - and their similarities and differences that have been observed. The end result of this study will be a new PDF4LHC21 ensemble of combined PDFs suitable for a wide range of LHC applications.

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Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-07CH11359; SC0010129

OSTI ID:: 1875962

Journal Information:: SciPost Physics Proceedings, Journal Name: SciPost Physics Proceedings Journal Issue: 8; ISSN 2666-4003

Publisher:: Stichting SciPostCopyright Statement

Country of Publication:: Netherlands

Language:: English

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