Towards EPPS21 nuclear PDFs
Kari J. Eskola, Petja Paakkinen, Hannu Paukkunen, Carlos A. Salgado
TL;DR
This paper presents an updated global analysis of nuclear parton distribution functions (PDFs), incorporating recent collider and fixed-target data, and introduces a novel method to quantify the impact of free-proton PDF uncertainties on nuclear PDF extraction.
Contribution
The paper introduces the EPPS21 nuclear PDFs analysis, including new data sets and a novel approach to assess free-proton PDF uncertainties' impact.
Findings
Inclusion of recent LHC dijet, D-meson, and W-production data.
Quantification of free-proton PDF uncertainties on nuclear PDFs.
Progress in updating nuclear PDF global analysis.
Abstract
We report on the progress in updating our global analysis of nuclear PDFs. In particular, we will discuss the inclusion of double differential 5.02 TeV dijet and D-meson measurements, as well as 8.16 TeV W-production data from p-Pb collisions at the LHC. The new EPPS21 analysis will also involve recent JLab data for deep-inelastic scattering. As a novel aspect within our approach, we now also quantify the impact of free-proton PDF uncertainties on our extraction of nuclear PDFs.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Particle Detector Development and Performance