Constraints on the Up-Quark Valence Distribution in the Proton
arxiv(2023)
摘要
The high-x data from the ZEUS Collaboration are used to extract parton density distributions of the proton deep in the perturbative regime of QCD. The data primarily constrain the up-quark valence distribution and new results are presented on its x dependence as well as on the momentum carried by the up quark. The results were obtained using Bayesian analysis methods which can serve as a model for future parton density extractions.
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关键词
proton,up-quark
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