论文标题

在LHC和未来山脉的Parton分布功能上测得的顶级质量质量的依赖性

Dependence of the top-quark mass measured in top-quark pair production on the parton distribution functions at the LHC and future colliders

论文作者

Gombas, Jason, Fein, Jarrett, Sawford, Sara, Schwienhorst, Reinhard

论文摘要

高夸克质量测量在顶Quark生产中对Parton分布功能的依赖性通过在强子山子在Top-Qark Pairs Producter中的不变质量的差异分布来探讨Parton分布功能。考虑了几种不同的质子 - 普罗顿对撞机选项:8 TEV,13 TEV,13.6 TEV,14 TEV和100 TEV。顶级质量是从卡方拟合到顶级夸克对不变质量的。 Parton分布函数不确定性用于卡方评估。通过拟合到顶级系统的纵向动量,不确定性降低了。发现由于Parton分布功能引起的顶级质量不确定性降低了20%。

The dependence of the top-quark mass measurement in top-quark production on the parton distribution functions is explored through the differential distribution of the invariant mass of the top-antitop system in top-quark pair production at hadron colliders. Several different proton-proton collider options are considered: 8 TeV, 13 TeV, 13.6 TeV, 14 TeV, and 100 TeV. The top-quark mass is obtained from a chi-squared fit to the invariant mass of the top-antitop-quark pair. The parton distribution function uncertainties are used in the chi-square evaluation. The uncertainties are reduced through a fit to the longitudinal momentum of the top-antitop system. The top-quark mass uncertainty due to parton distribution functions is found to be reduced by 20%.

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