arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.01014hep-ph
收藏

用LHeC带电电流中的粲产生探测质子的奇异含量

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, Alexande… 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:

我们使用xFitter框架研究了带电电流深度非弹性散射(DIS)中的粲产生。最近的结果从大型强子对撞机集中了新的注意力的奇异夸克部分子分布函数(PDF)的确定和DIS魅力过程提供了重要的补充约束这个数量。我们研究了当前的PDF不确定性,并使用LHeC伪数据来估计该拟议设施的潜在改进。由于xFitter实现了固定风味和可变风味数方案,我们可以比较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。我们发现,高统计LHeC数据涵盖了广泛的运动学范围可以大大减少奇怪的PDF不确定性。

英文摘要:

We study charm production in charged-current deep-inelastic scattering (DIS) using the xFitter framework. Recent results from the LHC have focused renewed attention on the determination of the strange-quark parton distribution function (PDF) and the DIS charm process provides important complementary constraints on this quantity. We examine the current PDF uncertainty, and use LHeC pseudodata to estimate the potential improvement from this proposed facility. As xFitter implements both fixed-flavor- and variable-flavor-number schemes, we can compare the impact of these different theoretical choices; this highlights some interesting aspects of multi-scale calculations. We find that the high-statistics LHeC data covering a wide kinematic range could substantially reduce the strange PDF uncertainty.

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。

↑