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arXiv 1609.07404hep-ph
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顶夸克截面和分布的理论结果

Theoretical results for top-quark cross sections and distributions

Nikolaos Kidonakis

摘要:

我提出了新的结果和更新的总截面和微分分布在顶-反顶对和单顶生产。软胶子修正被添加到精确的固定阶的结果,以提供最好的预测在近似N $^3$ LO的$t{\bar t}$生产和近似NNLO的单顶生产。总截面和顶夸克的横动量和快度分布,并在LHC和Tevatron能量的数据进行比较。本文还讨论了三圈以上的尖点反常维数。

英文摘要:

I present new results and updates for total cross sections and differential distributions in top-antitop pair and single-top production. Soft-gluon corrections are added to exact fixed-order results to provide the best predictions at approximate N$^3$LO for $t{\bar t}$ production and approximate NNLO for single-top production. Total cross sections and top-quark transverse-momentum and rapidity distributions are presented and compared with data at LHC and Tevatron energies. The cusp anomalous dimension at three and higher loops is also discussed.

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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