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arXiv · 2307.11153

Exploring the impact of high-precision top-quark pair production data on the structure of the proton at the LHC

Alim Ablat·Marco Guzzi·Keping Xie·Sayipjamal Dulat·Tie-Jiun Hou·Ibrahim Sitiwaldi·C. -P. Yuan
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Abstract

The impact of recent LHC top-quark pair production single differential cross section measurements at 13 TeV collision energy on the structure of the proton is explored. In particular, the impact of these high-precision data on the gluon and other parton distribution functions (PDFs) of the proton at intermediate and large partonic momentum fraction $x$ is analyzed. This study extends the CT18 global analysis framework to include these new data. The interplay between top-quark pair and inclusive jet production as well as other processes at the LHC, is studied. In addition, a study of the impact of scale choice on the theory description of the new 13 TeV $t\bar t$ measurements is performed.

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Alim Ablat, Marco Guzzi, Keping Xie, Sayipjamal Dulat, Tie-Jiun Hou, Ibrahim Sitiwaldi, C. -P. Yuan. 2023-07-20. Exploring the impact of high-precision top-quark pair production data on the structure of the proton at the LHC. https://arxiv.org/abs/2307.11153

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