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arXiv 1909.00451hep-ph
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最近QCD从xFitter项目中获得的结果:探测在LHeC上带电电流中产生粲的质子的奇异含量

Recent QCD results from the xFitter project: Probing the strange content of the proton with charm production in charged current at LHeC

xFitter Developers Team, Hamed Abdolmaleki, Valerio Bertone, Daniel Britzger, Stefano Camarda, Amanda Cooper-Sarkar, Achim Geiser, Francesco Giuli, Alexander Gl… 展开作者

xFitter Developers Team, Hamed Abdolmaleki, Valerio Bertone, Daniel Britzger, Stefano Camarda, Amanda Cooper-Sarkar, Achim Geiser, Francesco Giuli, Alexander Glazov, Agnieszka Luszczak, Ivan Novikov, Fred Olness, Andrey Sapronov, Oleksandr Zenaiev

摘要:

我们调查的魅力生产在带电电流深非弹性散射(DIS)使用xFitter程序。xFitter是一个开源软件框架,用于确定PDF和分析QCD物理,并已用于各种LHC研究。带电电流DIS粲产生的研究为奇异夸克PDF,s(x)提供了一个重要的视角。我们利用xFitter工具来研究目前的s(x)约束,然后使用LHeC伪数据来推断这些约束可能如何改进。此外,由于xFitter实现了固定风味和可变风味数方案,我们可以检查这些不同理论选择的影响;这突出了多尺度计算的一些有趣方面。本研究提供了xFitter的许多功能的实际说明。

英文摘要:

We investigate charm production in charged-current deep-inelastic scattering (DIS) using the xFitter program. xFitter is an open-source software framework for the determination of PDFs and the analysis of QCD physics, and has been used for a variety of LHC studies. The study of charged current DIS charm production provides an important perspective on the strange quark PDF, s(x). We make use of the xFitter tools to study the present s(x) constraints, and then use LHeC pseudodata to infer how these might improve. Furthermore, as xFitter implements both Fixed Flavor and Variable Flavor number schemes, we can examine the impact of these different theoretical choices; this highlights some interesting aspects of multi-scale calculations. This study provides a practical illustration of the many features of xFitter.

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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