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arXiv 2103.16384hep-exhep-ph
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用ATLAS和CMS中顶夸克截面测量标准模型参数

Measuring standard model parameters using top-quark cross sections in ATLAS and CMS

Matteo M. Defranchis

摘要:

顶夸克截面的理论预测依赖于量子色动力学拉格朗日量的参数值,如强耦合常数和顶夸克的质量,但也依赖于标准模型的电弱扇区和部分子分布函数的参数。国家的最先进的计算和最近的测量在ATLAS和CMS实验在CERN LHC之间的比较允许这些参数的精确测定。在本程序中,总结和讨论了两个合作的最新结果。

英文摘要:

Theoretical predictions of top-quark cross sections depend on the values of the parameters of the quantum chromodynamics Lagrangian, such as the strong coupling constant and the mass of the top quark, but also on parameters of the electroweak sector of the standard model and parton distribution functions. Comparisons between state-of-the-art calculations and recent measurements at the ATLAS and CMS experiments at the CERN LHC allow for the precise determination of these parameters. In this proceeding, the most recent results by the two collaborations are summarized and 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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