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arXiv 1606.02482hep-ex
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在LHC上测量顶夸克质量的新方法

New Methods for Top-Quark Mass Measurements at the LHC

Benjamin Stieger

摘要:

最近的几个新的测量顶夸克质量,使用替代观测和重建技术,在欧洲核子研究中心的大型强子对撞机的ATLAS和CMS合作进行。替代观测量可以通过呈现不同的系统灵敏度和通过限制标准测量的普遍系统不确定性(例如射流能量校准)来帮助提供洞察力。此外,顶夸克质量是从理论上定义良好的观测量,如包括生产截面顶夸克对提取。最后,质量测量的事件拓扑结构占主导地位的电弱介导的单顶生产两个实验。不同工艺和生产模式的结果与标准测量结果一致。

英文摘要:

Several recent new measurements of the top-quark mass that use alternative observables and reconstruction techniques are presented, performed by the ATLAS and CMS collaborations at the CERN LHC. Alternative observables can help provide insight by presenting different systematic sensitivities and by constraining prevailing systematic uncertainties of standard measurements, such as jet energy calibrations. Furthermore, the top-quark mass is extracted from theoretically well-defined observables, such as the inclusive production cross section for top quark pairs. Finally, the mass is measured in event topologies dominated by electroweak-mediated single top production by both experiments. The results of different techniques and production modes are found to be consistent with what is obtained in standard measurements.

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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