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arXiv 2209.06571hep-phhep-ex
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关于质子中上夸克价分布的新约束

New constraints on the up-quark valence distribution in the proton

Ritu Aggarwal, Michiel Botje, Allen Caldwell, Francesca Capel, Oliver Schulz

AI总结:

本文利用ZEUS高$x$数据,通过贝叶斯分析方法提取质子部分子密度分布,重点约束上夸克价分布,并给出其$x$依赖及动量占比的新结果。

摘要:

利用ZEUS合作组的高$x$数据,在QCD微扰机制的深层区域提取质子的部分子密度分布。这些数据主要约束上夸克价分布,本文给出了关于其$x$依赖关系以及上夸克所携带动量的新结果。这些结果通过贝叶斯分析方法获得,该方法可作为未来部分子密度提取的范例。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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