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Hadron structure in high-energy collisions
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Parton distribution functions (PDFs) describe the structure of hadrons as composed of quarks and gluons. They are needed to make predictions for short-distance processes in high-energy collisions and are determined by fitting to cross section data. We review definitions of the PDFs and their relations to high-energy cross sections. We focus on the PDFs in protons, but also discuss PDFs in nuclei. We review in some detail the standard statistical treatment needed to fit the PDFs to data using the Hessian method. We discuss tests that can be used to critically examine whether the assumptions are indeed valid. We also present some ideas of what one can do in the case that the tests indicate that the assumptions fail.
Forward citations
Cited by 14 Pith papers
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Next-to-leading order evolution of structure functions without PDFs
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Progress in the CTEQ-TEA NNLO global QCD analysis
The CTEQ-TEA collaboration releases CT18, a new global fit of nucleon parton distributions at NNLO accuracy based on HERA and LHC data.
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Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO
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The impact of LHC precision measurements of inclusive jet and dijet production on the CTEQ-TEA global PDF fit
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LHC and DIS experimental data in the CT18(Z) global QCD analysis
New CT18-family NNLO PDFs are presented, with a fitted x-dependent factorization scale that lowers the HERA inclusive DIS chi-square by more than 50 units and mimics some low-x resummation effects.
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Constraining the Sea Quark Distributions Through W$^\pm$ Cross Section Ratio Measurements at STAR
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Fingerprinting New Physics with Effective Field Theories
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QCD for electroweak precision measurements: Foundations
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